refactor: extract reusable AI runtime package (#99059)

* refactor: extract reusable AI runtime package * refactor: complete AI provider relocation * refactor: keep llm core internal * refactor(ai): make @openclaw/ai self-contained with host policy ports Move pure transport helpers (tool projections, strict-schema normalization, prompt-cache boundary, stream guards, anthropic/openai compat, request activity) from src into packages/ai; move utf16-slice into normalization-core. Inject host policy (guarded fetch, redaction, strict-tool defaults, diagnostics logging) through AiTransportHost with inert library defaults installed by src/llm/stream.ts. Narrow the public barrel to instance-scoped createApiRegistry/createLlmRuntime; the process-default runtime moves behind internal/ and registerBuiltInApiProviders takes an explicit registry. Delete the src/llm/api-registry re-export facade. * fix(ai): teach node, jiti, and vite resolvers the @openclaw/ai and utf16-slice subpaths The workspace alias tables in root-alias.cjs, plugin-sdk-native-resolver, sdk-alias, the shared vitest config, and the Control UI vite config only knew @openclaw/llm-core; Node-side plugin loading resolved @openclaw/ai through the pnpm symlink to the unbuilt dist (checks-node-compact CI failures), and the Control UI build broke on the new normalization-core/utf16-slice subpath. * chore(ui): drop leftover service-worker debug logging * build(release): ship @openclaw/ai with its own shrinkwrap and honest dependency set packages/ai declares only its six real runtime deps (kysely, chalk, json5, tslog, zod, fs-safe, and proxyline were never imported); orphaned root deps removed. generate-npm-shrinkwrap now treats publishable packages/* like publishable plugins so the AI tarball pins its transitive tree even though workspace deps are omitted from the root shrinkwrap. knip learns the package entry points; the tsdown dts neverBundle option moves to its documented deps.dts home; the README documents the no-semver internal/* contract and host ports. * docs(ai): add minimal external-consumer example app examples/ai-chat consumes only the public @openclaw/ai surface (built dist via the workspace link): isolated runtime, built-in provider registration, one streamed completion. Supports Anthropic/OpenAI via env keys and a keyless local Ollama target; live-verified against Ollama. * docs(ai): document the @openclaw/ai package and workspace shrinkwrap boundary * chore(check): include examples/ in duplicate-scan targets * fix: emit normalization package subpaths * fix: complete AI package boundary artifacts * fix: align AI package boundary contracts * fix(ci): stabilize package release contracts * test: align documentation contract checks * test: keep cron docs guard aligned * test: align restored docs contract guards * test: follow upstream docs contracts * docs: drop superseded talk wording
2026-07-09 15:59:30 +00:00 · 2026-07-05 01:56:40 -04:00 · 2026-07-05 01:56:40 -04:00 · 062f88e3e3
commit 062f88e3e3
parent 913311845e
230 changed files with 3122 additions and 1248 deletions
--- a/.github/codeql/codeql-mcp-process-tool-boundary-critical-security.yml
+++ b/.github/codeql/codeql-mcp-process-tool-boundary-critical-security.yml
@ -28,7 +28,7 @@ paths:
  - src/agents/agent-tools.abort.ts
  - src/agents/agent-tools.before-tool-call*.ts
  - src/agents/agent-tools.read.ts
-  - src/agents/agent-tools-parameter-schema.ts
+  - packages/ai/src/providers/agent-tools-parameter-schema.ts
  - src/agents/sessions/tools/**
  - src/agents/embedded-agent-runner/effective-tool-policy.ts
  - src/agents/embedded-agent-runner/tool-name-allowlist.ts
--- a/.github/workflows/openclaw-npm-release.yml
+++ b/.github/workflows/openclaw-npm-release.yml
@ -170,6 +170,23 @@ jobs:
      - name: Build
        run: pnpm build

+      - name: Pack AI runtime package
+        id: ai_runtime_tarballs
+        run: |
+          set -euo pipefail
+          PACKAGE_VERSION="$(node -p "require('./package.json').version")"
+          package_version="$(node -p "require('./packages/ai/package.json').version")"
+          if [[ "$package_version" != "$PACKAGE_VERSION" ]]; then
+            echo "packages/ai version ${package_version} does not match openclaw ${PACKAGE_VERSION}." >&2
+            exit 1
+          fi
+          ARTIFACT_DIR="$RUNNER_TEMP/openclaw-ai-runtime-packages"
+          rm -rf "$ARTIFACT_DIR"
+          mkdir -p "$ARTIFACT_DIR"
+          pnpm --dir packages/ai pack --pack-destination "$ARTIFACT_DIR"
+          (cd "$ARTIFACT_DIR" && sha256sum ./*.tgz > SHA256SUMS)
+          echo "dir=$ARTIFACT_DIR" >> "$GITHUB_OUTPUT"
+
      - name: Build Control UI
        run: pnpm ui:build

@ -233,10 +250,11 @@ jobs:
          RELEASE_REF: ${{ inputs.tag }}
          RELEASE_NPM_DIST_TAG: ${{ inputs.npm_dist_tag }}
          DEPENDENCY_EVIDENCE_DIR: ${{ steps.dependency_evidence.outputs.dir }}
+          AI_RUNTIME_TARBALL_DIR: ${{ steps.ai_runtime_tarballs.outputs.dir }}
        run: |
          set -euo pipefail
          PACK_OUTPUT="$RUNNER_TEMP/npm-pack-output.txt"
-          npm pack --json 2>&1 | tee "$PACK_OUTPUT"
+          pnpm pack --json 2>&1 | tee "$PACK_OUTPUT"
          PACK_NAME="$(node - "$PACK_OUTPUT" <<'NODE'
          const fs = require("node:fs");
          const path = require("node:path");
@ -244,19 +262,23 @@ jobs:

          function resolveTarballFileName(value) {
            const fileName = typeof value === "string" ? value.trim() : "";
+            const resolved = path.resolve(fileName);
            if (
              !fileName.endsWith(".tgz") ||
              fileName.includes("\0") ||
              fileName !== path.basename(fileName) ||
-              fileName !== path.win32.basename(fileName)
+              fileName !== path.win32.basename(fileName) ||
+              path.dirname(resolved) !== process.cwd()
            ) {
              console.error(`npm pack reported unsafe tarball filename ${JSON.stringify(fileName)}.`);
              process.exit(1);
            }
-            return fileName;
+            return path.basename(resolved);
          }

-          function arrayEndFrom(start) {
+          function jsonEndFrom(start) {
+            const opening = input[start];
+            const closing = opening === "[" ? "]" : "}";
            let depth = 0;
            let inString = false;
            let escape = false;
@ -274,9 +296,9 @@ jobs:
              }
              if (char === "\"") {
                inString = true;
-              } else if (char === "[") {
+              } else if (char === opening) {
                depth += 1;
-              } else if (char === "]") {
+              } else if (char === closing) {
                depth -= 1;
                if (depth === 0) {
                  return i + 1;
@ -286,15 +308,15 @@ jobs:
            return -1;
          }

-          for (const match of input.matchAll(/\[/g)) {
+          for (const match of input.matchAll(/[\[{]/g)) {
            const start = match.index;
-            const end = arrayEndFrom(start);
+            const end = jsonEndFrom(start);
            if (end === -1) {
              continue;
            }
            try {
              const parsed = JSON.parse(input.slice(start, end));
-              const first = Array.isArray(parsed) ? parsed[0] : null;
+              const first = Array.isArray(parsed) ? parsed[0] : parsed;
              if (first && Object.prototype.hasOwnProperty.call(first, "filename")) {
                process.stdout.write(resolveTarballFileName(first.filename));
                process.exit(0);
@ -326,6 +348,8 @@ jobs:
          rm -rf "$ARTIFACT_DIR"
          mkdir -p "$ARTIFACT_DIR"
          cp "$PACK_PATH" "$ARTIFACT_DIR/"
+          cp "$AI_RUNTIME_TARBALL_DIR"/*.tgz "$ARTIFACT_DIR/"
+          cp "$AI_RUNTIME_TARBALL_DIR/SHA256SUMS" "$ARTIFACT_DIR/ai-runtime-SHA256SUMS"
          cp -R "$DEPENDENCY_EVIDENCE_DIR" "$ARTIFACT_DIR/dependency-evidence"
          printf '%s\n' "$RELEASE_TAG" > "$ARTIFACT_DIR/release-tag.txt"
          printf '%s\n' "$RELEASE_SHA" > "$ARTIFACT_DIR/release-sha.txt"
@ -358,14 +382,16 @@ jobs:
          PREFLIGHT_ARTIFACT_DIR: ${{ steps.packed_tarball.outputs.dir }}
        run: |
          set -euo pipefail
-          TARBALL_PATH="$(find "$PREFLIGHT_ARTIFACT_DIR" -maxdepth 1 -type f -name '*.tgz' -print | sort | tail -n 1)"
+          TARBALL_PATH="$(find "$PREFLIGHT_ARTIFACT_DIR" -maxdepth 1 -type f -name 'openclaw-[0-9]*.tgz' -print | sort | tail -n 1)"
          if [[ -z "$TARBALL_PATH" ]]; then
            echo "Prepared preflight tarball not found." >&2
            ls -la "$PREFLIGHT_ARTIFACT_DIR" >&2 || true
            exit 1
          fi
          PACKAGE_VERSION="$(node -p "require('./package.json').version")"
-          node --import tsx scripts/openclaw-npm-prepublish-verify.ts "$TARBALL_PATH" "$PACKAGE_VERSION"
+          AI_TARBALL="$(find "$PREFLIGHT_ARTIFACT_DIR" -maxdepth 1 -type f -name 'openclaw-ai-*.tgz' -print | head -n 1)"
+          node --import tsx scripts/openclaw-npm-prepublish-verify.ts \
+            "$TARBALL_PATH" "$PACKAGE_VERSION" "$AI_TARBALL"

      - name: Upload dependency release evidence
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
@ -716,6 +742,11 @@ jobs:
            echo "Prepared preflight tarball digest mismatch." >&2
            exit 1
          fi
+          if [[ ! -f preflight-tarball/ai-runtime-SHA256SUMS ]]; then
+            echo "Prepared AI runtime dependency checksums are missing." >&2
+            exit 1
+          fi
+          (cd preflight-tarball && sha256sum -c ai-runtime-SHA256SUMS)
          echo "tarball_name=$ARTIFACT_TARBALL_NAME" >> "$GITHUB_OUTPUT"
          echo "tarball_sha256=$ARTIFACT_TARBALL_SHA256" >> "$GITHUB_OUTPUT"
          echo "tarball_path=$ARTIFACT_TARBALL_PATH" >> "$GITHUB_OUTPUT"
@ -779,6 +810,22 @@ jobs:
          if [[ -n "${publish_target}" ]]; then
            publish_target="./${publish_target}"
          fi
+          publish_if_missing() {
+            local package_name="$1"
+            local tarball_path="$2"
+            local package_version
+            if [[ -z "$tarball_path" || ! -f "$tarball_path" ]]; then
+              echo "Prepared tarball for ${package_name} was not found." >&2
+              exit 1
+            fi
+            package_version="$(node -p "require('./package.json').version")"
+            if npm view "${package_name}@${package_version}" version >/dev/null 2>&1; then
+              echo "${package_name}@${package_version} is already published; reusing it."
+              return 0
+            fi
+            bash scripts/openclaw-npm-publish.sh --publish "./${tarball_path}"
+          }
+          publish_if_missing "@openclaw/ai" "$(find preflight-tarball -type f -name 'openclaw-ai-*.tgz' -print | head -n 1)"
          bash scripts/openclaw-npm-publish.sh --publish "${publish_target}"

      - name: Verify extended-stable registry readback
--- a/config/knip.config.ts
+++ b/config/knip.config.ts
@ -138,9 +138,13 @@ const config = {
      entry: rootEntries,
      ignoreDependencies: [
        "@openclaw/*",
+        // Docker packaging stages @openclaw/ai without nested dependencies after
+        // verifying the root owns its exact runtime dependency versions.
+        "@mistralai/mistralai",
        "cross-spawn",
        "file-type",
        "playwright-core",
+        "partial-json",
        "sqlite-vec",
        "tree-sitter-bash",
        ...rootBundledPluginRuntimeDependencies,
@ -164,6 +168,19 @@ const config = {
      ignoreDependencies: ["three"],
      project: ["src/**/*.{ts,tsx}!"],
    },
+    "packages/ai": {
+      // Mirror the published export map so knip sees every dist entry point.
+      entry: [
+        "src/index.ts!",
+        "src/providers.ts!",
+        "src/types.ts!",
+        "src/validation.ts!",
+        "src/utils/diagnostics.ts!",
+        "src/utils/event-stream.ts!",
+        "src/internal/*.ts!",
+      ],
+      project: ["src/**/*.ts!"],
+    },
    "packages/sdk": {
      entry: ["src/index.ts!"],
      project: ["src/**/*.ts!"],
--- a/docs/docs.json
+++ b/docs/docs.json
@ -1015,7 +1015,11 @@
            "groups": [
              {
                "group": "Overview",
-                "pages": ["index", "start/showcase", "concepts/features"]
+                "pages": [
+                  "index",
+                  "start/showcase",
+                  "concepts/features"
+                ]
              },
              {
                "group": "First steps",
@ -1041,7 +1045,11 @@
            "groups": [
              {
                "group": "Install overview",
-                "pages": ["install/index", "install/installer", "install/node"]
+                "pages": [
+                  "install/index",
+                  "install/installer",
+                  "install/node"
+                ]
              },
              {
                "group": "Maintenance",
@ -1094,7 +1102,10 @@
              },
              {
                "group": "Advanced setup",
-                "pages": ["start/setup", "openclaw-agent-runtime"]
+                "pages": [
+                  "start/setup",
+                  "openclaw-agent-runtime"
+                ]
              }
            ]
          },
@ -1103,7 +1114,10 @@
            "groups": [
              {
                "group": "Overview",
-                "pages": ["channels/index", "announcements/bluebubbles-imessage"]
+                "pages": [
+                  "channels/index",
+                  "announcements/bluebubbles-imessage"
+                ]
              },
              {
                "group": "Mainstream messaging",
@ -1240,7 +1254,9 @@
            "groups": [
              {
                "group": "Overview",
-                "pages": ["tools/index"]
+                "pages": [
+                  "tools/index"
+                ]
              },
              {
                "group": "Plugins",
@ -1381,7 +1397,11 @@
            "groups": [
              {
                "group": "Overview",
-                "pages": ["clawhub/index", "clawhub/quickstart", "clawhub/how-it-works"]
+                "pages": [
+                  "clawhub/index",
+                  "clawhub/quickstart",
+                  "clawhub/how-it-works"
+                ]
              },
              {
                "group": "Using ClawHub",
@ -1411,11 +1431,18 @@
            "groups": [
              {
                "group": "Overview",
-                "pages": ["providers/index", "providers/models"]
+                "pages": [
+                  "providers/index",
+                  "providers/models"
+                ]
              },
              {
                "group": "Concepts and configuration",
-                "pages": ["concepts/models", "concepts/model-providers", "concepts/model-failover"]
+                "pages": [
+                  "concepts/models",
+                  "concepts/model-providers",
+                  "concepts/model-failover"
+                ]
              },
              {
                "group": "Providers",
@ -1619,13 +1646,22 @@
                  },
                  {
                    "group": "Networking and discovery",
-                    "pages": ["network", "gateway/pairing", "gateway/discovery", "gateway/bonjour"]
+                    "pages": [
+                      "network",
+                      "gateway/pairing",
+                      "gateway/discovery",
+                      "gateway/bonjour"
+                    ]
                  }
                ]
              },
              {
                "group": "Remote access",
-                "pages": ["gateway/remote", "gateway/remote-gateway-readme", "gateway/tailscale"]
+                "pages": [
+                  "gateway/remote",
+                  "gateway/remote-gateway-readme",
+                  "gateway/tailscale"
+                ]
              },
              {
                "group": "Security",
@ -1653,13 +1689,23 @@
                  },
                  {
                    "group": "Node features",
-                    "pages": ["nodes/talk", "nodes/voicewake", "nodes/location-command"]
+                    "pages": [
+                      "nodes/talk",
+                      "nodes/voicewake",
+                      "nodes/location-command"
+                    ]
                  }
                ]
              },
              {
                "group": "Web interfaces",
-                "pages": ["web/index", "web/control-ui", "web/dashboard", "web/webchat", "web/tui"]
+                "pages": [
+                  "web/index",
+                  "web/control-ui",
+                  "web/dashboard",
+                  "web/webchat",
+                  "web/tui"
+                ]
              }
            ]
          },
@ -1732,7 +1778,11 @@
                  },
                  {
                    "group": "Configuration",
-                    "pages": ["cli/config", "cli/configure", "cli/webhooks"]
+                    "pages": [
+                      "cli/config",
+                      "cli/configure",
+                      "cli/webhooks"
+                    ]
                  },
                  {
                    "group": "Plugins and skills",
@ -1746,7 +1796,11 @@
                  },
                  {
                    "group": "Interfaces",
-                    "pages": ["cli/attach", "cli/dashboard", "cli/tui"]
+                    "pages": [
+                      "cli/attach",
+                      "cli/dashboard",
+                      "cli/tui"
+                    ]
                  },
                  {
                    "group": "Utility",
@ -1835,6 +1889,7 @@
                  "reference/wizard",
                  "reference/token-use",
                  "reference/secretref-credential-surface",
+                  "reference/openclaw-ai",
                  "reference/prompt-caching",
                  "reference/api-usage-costs",
                  "reference/transcript-hygiene",
@ -1856,14 +1911,20 @@
              },
              {
                "group": "Project",
-                "pages": ["reference/application-modernization-plan", "reference/credits"]
+                "pages": [
+                  "reference/application-modernization-plan",
+                  "reference/credits"
+                ]
              },
              {
                "group": "Release and CI",
                "pages": [
                  {
                    "group": "Release notes",
-                    "pages": ["releases/index", "releases/2026.6.11"]
+                    "pages": [
+                      "releases/index",
+                      "releases/2026.6.11"
+                    ]
                  },
                  "maturity/scorecard",
                  "maturity/taxonomy",
@ -1882,23 +1943,43 @@
            "groups": [
              {
                "group": "Start here",
-                "pages": ["help/index", "help/troubleshooting", "help/debugging"]
+                "pages": [
+                  "help/index",
+                  "help/troubleshooting",
+                  "help/debugging"
+                ]
              },
              {
                "group": "FAQ",
-                "pages": ["help/faq", "help/faq-first-run", "help/faq-models"]
+                "pages": [
+                  "help/faq",
+                  "help/faq-first-run",
+                  "help/faq-models"
+                ]
              },
              {
                "group": "Testing",
-                "pages": ["help/testing", "help/testing-updates-plugins", "help/testing-live"]
+                "pages": [
+                  "help/testing",
+                  "help/testing-updates-plugins",
+                  "help/testing-live"
+                ]
              },
              {
                "group": "Diagnostics",
-                "pages": ["help/environment", "diagnostics/flags", "debug/node-issue"]
+                "pages": [
+                  "help/environment",
+                  "diagnostics/flags",
+                  "debug/node-issue"
+                ]
              },
              {
                "group": "Community and meta",
-                "pages": ["start/lore", "start/hubs", "start/docs-directory"]
+                "pages": [
+                  "start/lore",
+                  "start/hubs",
+                  "start/docs-directory"
+                ]
              }
            ]
          }
--- a/docs/docs_map.md
+++ b/docs/docs_map.md
@ -8161,6 +8161,14 @@ Do not edit it by hand; run `pnpm docs:map:gen`.
  - H3: Example
  - H2: Related

+## reference/openclaw-ai.md
+
+- Route: /reference/openclaw-ai
+- Headings:
+  - H2: Quick start
+  - H2: Design contract
+  - H2: Subpath exports
+
 ## reference/prompt-caching.md

 - Route: /reference/prompt-caching
--- a/docs/gateway/security/shrinkwrap.md
+++ b/docs/gateway/security/shrinkwrap.md
@ -32,7 +32,7 @@ OpenClaw is a gateway, plugin host, model router, and agent runtime, so a defaul

 ## Generating and checking

-The root `openclaw` npm package and OpenClaw-owned npm plugin packages (for example `@openclaw/discord`) include `npm-shrinkwrap.json` when they publish. Suitable plugin packages can also publish with explicit `bundledDependencies`, carrying their runtime dependency files in the plugin tarball instead of relying only on install-time resolution.
+The root `openclaw` npm package, OpenClaw-owned npm plugin packages (for example `@openclaw/discord`), and publishable workspace packages such as [`@openclaw/ai`](/reference/openclaw-ai) include `npm-shrinkwrap.json` when they publish. Workspace dependencies are omitted from the root shrinkwrap because they publish beside the root package; each publishable workspace package pins its own transitive tree instead. Suitable plugin packages can also publish with explicit `bundledDependencies`, carrying their runtime dependency files in the plugin tarball instead of relying only on install-time resolution.

 ```bash
 # All shrinkwrap-managed packages (root + publishable plugins)
--- a/docs/reference/RELEASING.md
+++ b/docs/reference/RELEASING.md
@ -162,7 +162,7 @@ A legacy fallback correction tag may reuse base-package evidence only when the c
 - Run `pnpm check:architecture` before release preflight so the broader import cycle and architecture boundary checks are green outside the faster local gate.
 - Run `pnpm build && pnpm ui:build` before `pnpm release:check` so the expected `dist/*` release artifacts and Control UI bundle exist for the pack validation step.
 - Run `pnpm release:prep` after the root version bump and before tagging. It runs every deterministic release generator that commonly drifts after a version/config/API change: plugin versions, npm shrinkwraps, plugin inventory, base config schema, bundled channel config metadata, config docs baseline, plugin SDK exports, and plugin SDK API baseline. `pnpm release:check` re-runs those guards in check mode (plus a plugin SDK surface budget check) and reports every generated drift failure in one pass before running package release checks.
- Plugin version sync updates official plugin package versions and existing `openclaw.compat.pluginApi` floors to the OpenClaw release version by default. Treat that field as the plugin SDK/runtime API floor, not just a copy of the package version: for plugin-only releases that intentionally remain compatible with older OpenClaw hosts, keep the floor at the oldest supported host API and document that choice in the plugin release proof.
+- Plugin version sync updates the publishable `@openclaw/ai` runtime package, official plugin package versions, and existing `openclaw.compat.pluginApi` floors to the OpenClaw release version by default. Treat that field as the plugin SDK/runtime API floor, not just a copy of the package version: for plugin-only releases that intentionally remain compatible with older OpenClaw hosts, keep the floor at the oldest supported host API and document that choice in the plugin release proof.
 - Run the manual `Full Release Validation` workflow before release approval to kick off all pre-release test boxes from one entrypoint. It accepts a branch, tag, or full commit SHA, dispatches manual `CI`, and dispatches `OpenClaw Release Checks` for install smoke, package acceptance, cross-OS package checks, QA Lab parity, Matrix, and Telegram lanes. Stable and full runs always include exhaustive live/E2E and Docker release-path soak; `run_release_soak=true` is retained for an explicit beta soak. Package Acceptance provides the canonical package Telegram E2E during candidate validation, avoiding a second concurrent live poller.

  Provide `release_package_spec` after publishing a beta to reuse the shipped npm package across release checks, Package Acceptance, and package Telegram E2E without rebuilding the release tarball. Provide `npm_telegram_package_spec` only when Telegram should use a different published package from the rest of release validation. Provide `package_acceptance_package_spec` when Package Acceptance should use a different published package from the release package spec. Provide `evidence_package_spec` when the release evidence report should prove that validation matches a published npm package without forcing Telegram E2E.
--- a/docs/reference/openclaw-ai.md
+++ b/docs/reference/openclaw-ai.md
@ -0,0 +1,71 @@
+---
+summary: "The @openclaw/ai npm package: reusable model transports, isolated runtimes, and host policy ports"
+title: "@openclaw/ai package"
+read_when:
+  - You want to reuse OpenClaw's model transports in another application
+  - You are changing packages/ai or the AI transport host ports
+  - You are reviewing what the openclaw release publishes to npm besides the root package
+---
+
+`@openclaw/ai` is the publishable library form of OpenClaw's model execution
+layer: provider-neutral message/tool/stream contracts, validation, diagnostics,
+event streams, an isolated runtime registry, and lazy adapters for the eight
+built-in API families (Anthropic Messages, OpenAI Completions, OpenAI
+Responses, Azure OpenAI Responses, ChatGPT/Codex Responses, Google Generative
+AI, Google Vertex, Mistral Conversations).
+
+It publishes alongside the root `openclaw` package on every release, pinned to
+the same version, with its own `npm-shrinkwrap.json` so its transitive
+dependency tree is locked at install time. Installing `openclaw` installs the
+matching `@openclaw/ai` automatically; library consumers can depend on it
+directly without any OpenClaw application code.
+
+## Quick start
+
+```js
+import { createLlmRuntime } from "@openclaw/ai";
+import { registerBuiltInApiProviders } from "@openclaw/ai/providers";
+
+const runtime = createLlmRuntime();
+registerBuiltInApiProviders(runtime.registry);
+
+const stream = runtime.streamSimple(model, { messages }, { apiKey });
+for await (const event of stream) {
+  if (event.type === "text_delta") process.stdout.write(event.delta);
+}
+const result = await stream.result();
+```
+
+A runnable version lives in the repository at `examples/ai-chat`.
+
+## Design contract
+
+- **Instance-scoped by default.** Importing the package registers nothing
+  globally. `createApiRegistry()` / `createLlmRuntime()` return isolated
+  instances; `registerBuiltInApiProviders(registry)` opts one registry into the
+  built-in transports. Provider SDK modules load lazily on first use.
+- **Host policy is injected, not bundled.** Request fetch guarding (for
+  example SSRF policy), secret redaction of tool-result replay text, OpenAI
+  strict-tool defaults, and diagnostics logging are `AiTransportHost` ports
+  configured with `configureAiTransportHost`. The library defaults are inert;
+  OpenClaw installs its real implementations in its stream facade.
+- **One event-stream identity.** `@openclaw/ai/event-stream` is the canonical
+  `EventStream` constructor shared by OpenClaw core, agent-core, and external
+  consumers.
+- **`internal/*` subpaths are not API.** They exist for the OpenClaw
+  application itself and carry no semver guarantee.
+- Provider ids, credentials, model catalogs, retries, and failover remain
+  application concerns. OpenClaw layers those around this package; a library
+  consumer supplies a `Model` object and options directly.
+
+## Subpath exports
+
+| Subpath          | Contents                                                                       |
+| ---------------- | ------------------------------------------------------------------------------ |
+| `.`              | Contracts, `createApiRegistry`, `createLlmRuntime`, `configureAiTransportHost` |
+| `./providers`    | `registerBuiltInApiProviders`, `resetApiProviders`                             |
+| `./types`        | Model/message/tool/stream types                                                |
+| `./validation`   | Tool argument validation                                                       |
+| `./diagnostics`  | Diagnostics contracts                                                          |
+| `./event-stream` | Shared `EventStream` implementation                                            |
+| `./internal/*`   | OpenClaw-internal, no semver guarantee                                         |
--- a/examples/ai-chat/README.md
+++ b/examples/ai-chat/README.md
@ -0,0 +1,29 @@
+# @openclaw/ai example: minimal chat completion
+
+Smallest possible consumer of the published `@openclaw/ai` package: creates an
+isolated runtime, registers the built-in API providers, and streams one
+completion. No OpenClaw application code is involved — inside this repo the
+workspace link resolves to the package's built `dist`, the same artifact npm
+consumers install, so `pnpm build` must have run first.
+
+```sh
+ANTHROPIC_API_KEY=sk-ant-... node index.mjs "Say hello"
+OPENAI_API_KEY=sk-... node index.mjs --provider openai "Say hello"
+# keyless, against a local Ollama server (OLLAMA_MODEL overrides the model id)
+node index.mjs --provider ollama "Say hello"
+```
+
+Text deltas stream to stdout; stop reason and token usage go to stderr.
+
+Notes for library consumers:
+
+- `createLlmRuntime()` gives you an isolated registry; nothing is registered
+  globally by importing the package.
+- `registerBuiltInApiProviders(runtime.registry)` opts into the eight built-in
+  transports (Anthropic, OpenAI Completions/Responses, Azure OpenAI, ChatGPT
+  Responses, Google, Vertex, Mistral). Provider SDK modules load lazily on
+  first use.
+- Host policy (custom fetch, secret redaction, strict-tool defaults, logging)
+  is injectable via `configureAiTransportHost`; the defaults are inert.
+- Full TypeScript types ship with the package; this example uses plain ESM so
+  it runs with bare `node`.
--- a/examples/ai-chat/index.mjs
+++ b/examples/ai-chat/index.mjs
@ -0,0 +1,85 @@
+// Minimal @openclaw/ai consumer: one isolated runtime, built-in providers,
+// one streamed completion. Uses only the public package surface — no OpenClaw
+// application code. Run with:
+//   ANTHROPIC_API_KEY=... node index.mjs "your prompt"
+//   OPENAI_API_KEY=... node index.mjs --provider openai "your prompt"
+import { createLlmRuntime } from "@openclaw/ai";
+import { registerBuiltInApiProviders } from "@openclaw/ai/providers";
+
+const MODELS = {
+  anthropic: {
+    id: "claude-sonnet-4-6",
+    name: "Claude Sonnet 4.6",
+    api: "anthropic-messages",
+    provider: "anthropic",
+    baseUrl: "https://api.anthropic.com",
+    reasoning: true,
+    input: ["text"],
+    cost: { input: 3, output: 15, cacheRead: 0.3, cacheWrite: 3.75 },
+    contextWindow: 200_000,
+    maxTokens: 8192,
+  },
+  openai: {
+    id: "gpt-5.5",
+    name: "GPT-5.5",
+    api: "openai-responses",
+    provider: "openai",
+    baseUrl: "https://api.openai.com/v1",
+    reasoning: true,
+    input: ["text"],
+    cost: { input: 1.25, output: 10, cacheRead: 0.125, cacheWrite: 0 },
+    contextWindow: 400_000,
+    maxTokens: 16_384,
+  },
+  // Local Ollama server; no API key required.
+  ollama: {
+    id: process.env.OLLAMA_MODEL || "llama3.2:latest",
+    name: "Ollama",
+    api: "openai-completions",
+    provider: "ollama",
+    baseUrl: "http://localhost:11434/v1",
+    reasoning: false,
+    input: ["text"],
+    cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+    contextWindow: 32_000,
+    maxTokens: 4096,
+  },
+};
+
+const args = process.argv.slice(2);
+const providerFlag = args.indexOf("--provider");
+const provider = providerFlag === -1 ? "anthropic" : args[providerFlag + 1];
+const prompt =
+  args.filter((_, i) => i !== providerFlag && i !== providerFlag + 1).join(" ") ||
+  "Reply with one short sentence: what is @openclaw/ai?";
+
+const model = MODELS[provider];
+if (!model) {
+  console.error(`Unknown provider "${provider}". Use one of: ${Object.keys(MODELS).join(", ")}`);
+  process.exit(1);
+}
+
+const runtime = createLlmRuntime();
+registerBuiltInApiProviders(runtime.registry);
+
+const stream = runtime.streamSimple(
+  model,
+  { messages: [{ role: "user", content: prompt, timestamp: Date.now() }] },
+  // Ollama ignores credentials but the OpenAI-compatible transport requires one.
+  provider === "ollama" ? { apiKey: "ollama" } : undefined,
+);
+
+for await (const event of stream) {
+  if (event.type === "text_delta") {
+    process.stdout.write(event.delta);
+  }
+}
+const result = await stream.result();
+process.stdout.write("\n");
+
+if (result.stopReason === "error" || result.stopReason === "aborted") {
+  console.error(`error: ${result.errorMessage ?? result.stopReason}`);
+  process.exit(1);
+}
+const { input, output } = result.usage;
+console.error(`[${model.id}] stop=${result.stopReason} tokens in=${input} out=${output}`);
--- a/examples/ai-chat/package.json
+++ b/examples/ai-chat/package.json
@ -0,0 +1,13 @@
+{
+  "name": "@openclaw/example-ai-chat",
+  "version": "0.0.0-private",
+  "private": true,
+  "description": "Minimal external-consumer example for @openclaw/ai",
+  "type": "module",
+  "scripts": {
+    "start": "node index.mjs"
+  },
+  "dependencies": {
+    "@openclaw/ai": "workspace:*"
+  }
+}
--- a/extensions/tsconfig.package-boundary.paths.json
+++ b/extensions/tsconfig.package-boundary.paths.json
@ -116,6 +116,27 @@
      "@openclaw/whatsapp/api.js": [
        "../dist/plugin-sdk/extensions/whatsapp/api.d.ts"
      ],
+      "@openclaw/ai": [
+        "../dist/plugin-sdk/packages/ai/src/index.d.ts"
+      ],
+      "@openclaw/ai/diagnostics": [
+        "../dist/plugin-sdk/packages/ai/src/utils/diagnostics.d.ts"
+      ],
+      "@openclaw/ai/event-stream": [
+        "../dist/plugin-sdk/packages/ai/src/utils/event-stream.d.ts"
+      ],
+      "@openclaw/ai/providers": [
+        "../dist/plugin-sdk/packages/ai/src/providers.d.ts"
+      ],
+      "@openclaw/ai/types": [
+        "../dist/plugin-sdk/packages/ai/src/types.d.ts"
+      ],
+      "@openclaw/ai/validation": [
+        "../dist/plugin-sdk/packages/ai/src/validation.d.ts"
+      ],
+      "@openclaw/ai/internal/*": [
+        "../dist/plugin-sdk/packages/ai/src/internal/*.d.ts"
+      ],
      "@openclaw/llm-core": [
        "../dist/plugin-sdk/packages/llm-core/src/index.d.ts"
      ],
--- a/extensions/xai/tsconfig.json
+++ b/extensions/xai/tsconfig.json
@ -102,6 +102,27 @@
      "@openclaw/qa-channel/api.js": [
        "../../dist/plugin-sdk/extensions/qa-channel/api.d.ts"
      ],
+      "@openclaw/ai": [
+        "../../dist/plugin-sdk/packages/ai/src/index.d.ts"
+      ],
+      "@openclaw/ai/diagnostics": [
+        "../../dist/plugin-sdk/packages/ai/src/utils/diagnostics.d.ts"
+      ],
+      "@openclaw/ai/event-stream": [
+        "../../dist/plugin-sdk/packages/ai/src/utils/event-stream.d.ts"
+      ],
+      "@openclaw/ai/providers": [
+        "../../dist/plugin-sdk/packages/ai/src/providers.d.ts"
+      ],
+      "@openclaw/ai/types": [
+        "../../dist/plugin-sdk/packages/ai/src/types.d.ts"
+      ],
+      "@openclaw/ai/validation": [
+        "../../dist/plugin-sdk/packages/ai/src/validation.d.ts"
+      ],
+      "@openclaw/ai/internal/*": [
+        "../../dist/plugin-sdk/packages/ai/src/internal/*.d.ts"
+      ],
      "@openclaw/llm-core": [
        "../../dist/plugin-sdk/packages/llm-core/src/index.d.ts"
      ],
--- a/package.json
+++ b/package.json
@ -1986,6 +1986,7 @@
    "@mistralai/mistralai": "2.4.0",
    "@modelcontextprotocol/sdk": "1.29.0",
    "@mozilla/readability": "0.6.0",
+    "@openclaw/ai": "workspace:*",
    "@openclaw/fs-safe": "0.4.1",
    "@openclaw/proxyline": "0.3.3",
    "@silvia-odwyer/photon-node": "0.3.4",
--- a/packages/agent-core/package.json
+++ b/packages/agent-core/package.json
@ -95,7 +95,7 @@
    }
  },
  "dependencies": {
-    "@openclaw/llm-core": "workspace:*",
+    "@openclaw/ai": "workspace:*",
    "typebox": "1.3.3"
  }
 }
--- a/packages/agent-core/src/agent-loop.test.ts
+++ b/packages/agent-core/src/agent-loop.test.ts
@ -1,4 +1,5 @@
 // Agent Core tests cover agent loop behavior.
+import { EventStream } from "@openclaw/ai/event-stream";
 import { Type } from "typebox";
 import { describe, expect, it, vi } from "vitest";
 import { agentLoop, agentLoopContinue, runAgentLoop } from "./agent-loop.js";
@ -77,6 +78,7 @@ describe("agentLoop EventStream failures", () => {
      undefined,
      failingStreamFn,
    );
+    expect(stream).toBeInstanceOf(EventStream);

    const events = await collectEvents(stream);
    const result = await stream.result();
--- a/packages/agent-core/src/agent-loop.ts
+++ b/packages/agent-core/src/agent-loop.ts
@ -1,6 +1,6 @@
-// Keep the runtime class on the package specifier so built agent-core shares
-// constructor identity with @openclaw/llm-core; source types keep SDK d.ts bundled.
-import { EventStream as LlmEventStream } from "@openclaw/llm-core";
+// Keep the runtime class on the public package specifier so OpenClaw and
+// external consumers share one constructor identity.
+import { EventStream as LlmEventStream } from "@openclaw/ai/event-stream";
 import type {
  AssistantMessage,
  AssistantMessageEvent,
--- a/packages/agent-core/src/llm.ts
+++ b/packages/agent-core/src/llm.ts
@ -1,2 +1,2 @@
-// LLM-core compatibility barrel for agent-core consumers.
-export * from "@openclaw/llm-core";
+// AI contract compatibility barrel for agent-core consumers.
+export * from "@openclaw/ai";
--- a/packages/agent-core/src/validation.ts
+++ b/packages/agent-core/src/validation.ts
@ -1,2 +1,2 @@
 // Tool validation facade for callers that import validation from agent-core.
-export { validateToolArguments, validateToolCall } from "@openclaw/llm-core";
+export { validateToolArguments, validateToolCall } from "@openclaw/ai/validation";
--- a/packages/ai/LICENSE
+++ b/packages/ai/LICENSE
@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 OpenClaw Foundation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/packages/ai/README.md
+++ b/packages/ai/README.md
@ -0,0 +1,28 @@
+# `@openclaw/ai`
+
+Reusable model API contracts, provider adapters, and streaming primitives from
+OpenClaw. The package supports isolated runtime instances; importing it does not
+register providers globally.
+
+```ts
+import { createLlmRuntime } from "@openclaw/ai";
+import { registerBuiltInApiProviders } from "@openclaw/ai/providers";
+
+const runtime = createLlmRuntime();
+registerBuiltInApiProviders(runtime.registry);
+```
+
+Provider-neutral contracts, validation, diagnostics, and event streams are
+available from the package root and focused subpaths such as
+`@openclaw/ai/event-stream` and `@openclaw/ai/validation`. No second OpenClaw
+runtime package is required.
+
+Provider ids, credentials, model catalogs, retries, and failover remain
+application concerns. OpenClaw supplies those policies around this package.
+Host policy (request fetch guarding, secret redaction, strict-tool defaults,
+diagnostics logging) can be injected with `configureAiTransportHost`; the
+defaults are inert.
+
+`@openclaw/ai/internal/*` subpaths exist for the OpenClaw application itself.
+They carry no semver guarantee and can change or disappear in any release; do
+not depend on them outside OpenClaw.
--- a/packages/ai/npm-shrinkwrap.json
+++ b/packages/ai/npm-shrinkwrap.json
@ -0,0 +1,645 @@
+{
+  "name": "@openclaw/ai",
+  "version": "2026.6.11",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "@openclaw/ai",
+      "version": "2026.6.11",
+      "license": "MIT",
+      "dependencies": {
+        "@anthropic-ai/sdk": "0.109.1",
+        "@google/genai": "2.10.0",
+        "@mistralai/mistralai": "2.4.0",
+        "openai": "6.45.0",
+        "partial-json": "0.1.7",
+        "typebox": "1.3.3"
+      },
+      "engines": {
+        "node": ">=22.19.0"
+      }
+    },
+    "node_modules/@anthropic-ai/sdk": {
+      "version": "0.109.1",
+      "resolved": "https://registry.npmjs.org/@anthropic-ai/sdk/-/sdk-0.109.1.tgz",
+      "integrity": "sha512-q9OnEKLr5H9nxSuXdgDgJhxfYMiE+AaUEBze2Gk91UcaaLnsN+Lx5fbCYywiqurU/APLdwv23x03Wm6WN3EBsg==",
+      "license": "MIT",
+      "dependencies": {
+        "json-schema-to-ts": "^3.1.1",
+        "standardwebhooks": "^1.0.0"
+      },
+      "bin": {
+        "anthropic-ai-sdk": "bin/cli"
+      },
+      "peerDependencies": {
+        "zod": "^3.25.0 || ^4.0.0"
+      },
+      "peerDependenciesMeta": {
+        "zod": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@babel/runtime": {
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.29.7.tgz",
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+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@google/genai": {
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/@google/genai/-/genai-2.10.0.tgz",
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+      "hasInstallScript": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "google-auth-library": "^10.3.0",
+        "p-retry": "^4.6.2",
+        "protobufjs": "^7.5.4",
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+      },
+      "engines": {
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+      },
+      "peerDependencies": {
+        "@modelcontextprotocol/sdk": "^1.25.2"
+      },
+      "peerDependenciesMeta": {
+        "@modelcontextprotocol/sdk": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@mistralai/mistralai": {
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+    "node_modules/ws": {
+      "version": "8.21.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.21.0.tgz",
+      "integrity": "sha512-Vsp28b7DRcimFQvrqu2Wek3z1iYxDCWqHYB8Qsnk/S4RfaCQzPGPyBNuVjJV3cd6UiKtUtp6sNM77gWvzcCH+g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/zod": {
+      "version": "4.4.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.4.3.tgz",
+      "integrity": "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
+    "node_modules/zod-to-json-schema": {
+      "version": "3.25.2",
+      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.25.2.tgz",
+      "integrity": "sha512-O/PgfnpT1xKSDeQYSCfRI5Gy3hPf91mKVDuYLUHZJMiDFptvP41MSnWofm8dnCm0256ZNfZIM7DSzuSMAFnjHA==",
+      "license": "ISC",
+      "peerDependencies": {
+        "zod": "^3.25.28 || ^4"
+      }
+    }
+  }
+}
--- a/packages/ai/package.json
+++ b/packages/ai/package.json
@ -0,0 +1,89 @@
+{
+  "name": "@openclaw/ai",
+  "version": "2026.6.11",
+  "description": "Reusable model provider adapters and streaming runtime from OpenClaw",
+  "keywords": [
+    "ai",
+    "anthropic",
+    "google",
+    "llm",
+    "mistral",
+    "openai",
+    "streaming"
+  ],
+  "homepage": "https://github.com/openclaw/openclaw#readme",
+  "bugs": {
+    "url": "https://github.com/openclaw/openclaw/issues"
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/openclaw/openclaw.git",
+    "directory": "packages/ai"
+  },
+  "files": [
+    "dist",
+    "npm-shrinkwrap.json",
+    "LICENSE",
+    "README.md"
+  ],
+  "type": "module",
+  "main": "./dist/index.mjs",
+  "types": "./dist/index.d.mts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.mts",
+      "import": "./dist/index.mjs",
+      "default": "./dist/index.mjs"
+    },
+    "./providers": {
+      "types": "./dist/providers.d.mts",
+      "import": "./dist/providers.mjs",
+      "default": "./dist/providers.mjs"
+    },
+    "./diagnostics": {
+      "types": "./dist/diagnostics.d.mts",
+      "import": "./dist/diagnostics.mjs",
+      "default": "./dist/diagnostics.mjs"
+    },
+    "./event-stream": {
+      "types": "./dist/event-stream.d.mts",
+      "import": "./dist/event-stream.mjs",
+      "default": "./dist/event-stream.mjs"
+    },
+    "./types": {
+      "types": "./dist/types.d.mts",
+      "import": "./dist/types.mjs",
+      "default": "./dist/types.mjs"
+    },
+    "./validation": {
+      "types": "./dist/validation.d.mts",
+      "import": "./dist/validation.mjs",
+      "default": "./dist/validation.mjs"
+    },
+    "./internal/*": {
+      "types": "./dist/internal/*.d.mts",
+      "import": "./dist/internal/*.mjs",
+      "default": "./dist/internal/*.mjs"
+    }
+  },
+  "dependencies": {
+    "@anthropic-ai/sdk": "0.109.1",
+    "@google/genai": "2.10.0",
+    "@mistralai/mistralai": "2.4.0",
+    "openai": "6.45.0",
+    "partial-json": "0.1.7",
+    "typebox": "1.3.3"
+  },
+  "engines": {
+    "node": ">=22.19.0"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "openclaw": {
+    "release": {
+      "publishToNpm": true
+    }
+  }
+}
--- a/packages/ai/src/api-registry.test.ts
+++ b/packages/ai/src/api-registry.test.ts
@ -0,0 +1,76 @@
+// LLM Runtime tests cover api registry behavior.
+import { describe, expect, it, vi } from "vitest";
+import {
+  createApiRegistry,
+  createAssistantMessageEventStream,
+  createLlmRuntime,
+  type Model,
+} from "./index.js";
+
+const TEST_SOURCE_ID = "test:llm-runtime-api-registry";
+const emptyStream = () => createAssistantMessageEventStream();
+
+const model = {
+  id: "test-model",
+  name: "Test Model",
+  api: "test-api",
+  provider: "test-provider",
+  baseUrl: "https://example.invalid",
+  input: ["text"],
+  reasoning: false,
+  contextWindow: 1000,
+  maxTokens: 100,
+  cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+} satisfies Model;
+
+describe("LLM API registry", () => {
+  it("rejects mismatched model API calls", () => {
+    const registry = createApiRegistry();
+    registry.registerApiProvider(
+      {
+        api: "test-api",
+        stream: emptyStream,
+        streamSimple: emptyStream,
+      },
+      TEST_SOURCE_ID,
+    );
+
+    const provider = registry.getApiProvider("test-api");
+    expect(provider).toBeDefined();
+    expect(() => provider?.streamSimple({ ...model, api: "other-api" }, { messages: [] })).toThrow(
+      "Mismatched api: other-api expected test-api",
+    );
+  });
+
+  it("isolates providers between runtime instances", () => {
+    const first = createLlmRuntime();
+    const second = createLlmRuntime();
+    const streamSimple = vi.fn(() => createAssistantMessageEventStream());
+    first.registry.registerApiProvider({ api: "test-api", stream: streamSimple, streamSimple });
+
+    first.streamSimple(model, { messages: [] });
+
+    expect(streamSimple).toHaveBeenCalledOnce();
+    expect(() => second.streamSimple(model, { messages: [] })).toThrow(
+      "No API provider registered for api: test-api",
+    );
+  });
+
+  it("unregisters every provider owned by one source", () => {
+    const registry = createApiRegistry();
+    for (const api of ["test-api", "test-api-2"] as const) {
+      registry.registerApiProvider(
+        {
+          api,
+          stream: emptyStream,
+          streamSimple: emptyStream,
+        },
+        TEST_SOURCE_ID,
+      );
+    }
+
+    registry.unregisterApiProviders(TEST_SOURCE_ID);
+
+    expect(registry.getApiProviders()).toEqual([]);
+  });
+});
--- a/packages/llm-runtime/src/api-registry.ts
+++ b/packages/llm-runtime/src/api-registry.ts
@ -7,7 +7,7 @@ import type {
  SimpleStreamOptions,
  StreamFunction,
  StreamOptions,
-} from "../../llm-core/src/index.js";
+} from "@openclaw/llm-core";

 /** Runtime stream adapter signature stored in the API provider registry. */
 export type ApiStreamFunction = (
@ -36,19 +36,18 @@ export interface ApiProvider<
  streamSimple: StreamFunction<TApi, SimpleStreamOptions>;
 }

-interface ApiProviderInternal {
+/** Type-erased provider returned by a registry after API guards are installed. */
+export interface RegisteredApiProvider {
  api: Api;
  stream: ApiStreamFunction;
  streamSimple: ApiStreamSimpleFunction;
 }

-type RegisteredApiProvider = {
-  provider: ApiProviderInternal;
+type RegisteredApiProviderEntry = {
+  provider: RegisteredApiProvider;
  sourceId?: string;
 };

-const apiProviderRegistry = new Map<string, RegisteredApiProvider>();
-
 function wrapStream<TApi extends Api, TOptions extends StreamOptions>(
  api: TApi,
  stream: StreamFunction<TApi, TOptions>,
@ -73,13 +72,16 @@ function wrapStreamSimple<TApi extends Api>(
  };
 }

-/** Registers or replaces the provider implementation for an API id. */
-export function registerApiProvider<TApi extends Api, TOptions extends StreamOptions>(
+/** Creates an isolated provider registry for one runtime or tenant. */
+export function createApiRegistry() {
+  const providers = new Map<string, RegisteredApiProviderEntry>();
+
+  function registerApiProvider<TApi extends Api, TOptions extends StreamOptions>(
    provider: ApiProvider<TApi, TOptions>,
    /** Optional source id used to unregister all providers owned by one plugin/runtime. */
    sourceId?: string,
  ): void {
-  apiProviderRegistry.set(provider.api, {
+    providers.set(provider.api, {
      provider: {
        api: provider.api,
        stream: wrapStream(provider.api, provider.stream),
@ -89,26 +91,29 @@ export function registerApiProvider<TApi extends Api, TOptions extends StreamOpt
    });
  }

-/** Looks up a registered API provider by API id. */
-export function getApiProvider(api: Api): ApiProviderInternal | undefined {
-  return apiProviderRegistry.get(api)?.provider;
+  function getApiProvider(api: Api): RegisteredApiProvider | undefined {
+    return providers.get(api)?.provider;
  }

-/** Lists all currently registered API providers. */
-export function getApiProviders(): ApiProviderInternal[] {
-  return Array.from(apiProviderRegistry.values(), (entry) => entry.provider);
+  function getApiProviders(): RegisteredApiProvider[] {
+    return Array.from(providers.values(), (entry) => entry.provider);
  }

-/** Removes all providers registered by a plugin/source id. */
-export function unregisterApiProviders(sourceId: string): void {
-  for (const [api, entry] of apiProviderRegistry.entries()) {
+  function unregisterApiProviders(sourceId: string): void {
+    for (const [api, entry] of providers.entries()) {
      if (entry.sourceId === sourceId) {
-      apiProviderRegistry.delete(api);
+        providers.delete(api);
      }
    }
  }

-/** Clears the registry for test teardown and runtime reset flows. */
-export function clearApiProviders(): void {
-  apiProviderRegistry.clear();
+  return {
+    registerApiProvider,
+    getApiProvider,
+    getApiProviders,
+    unregisterApiProviders,
+    clearApiProviders: () => providers.clear(),
+  };
 }
+
+export type ApiRegistry = ReturnType<typeof createApiRegistry>;
--- a/packages/ai/src/env-api-keys.ts
+++ b/packages/ai/src/env-api-keys.ts
--- a/packages/ai/src/host.ts
+++ b/packages/ai/src/host.ts
@ -0,0 +1,66 @@
+// Host policy ports for the reusable transport package. Fetch guarding,
+// secret redaction, strict-tool policy, and diagnostics logging are owned by
+// the embedding application (OpenClaw core installs its implementations via
+// configureAiTransportHost); the library defaults below are inert so external
+// consumers get safe, dependency-free behavior without wiring anything.
+import type { Model } from "@openclaw/llm-core";
+
+/** Strict-tool policy inputs for OpenAI-compatible routes. */
+export interface OpenAIStrictToolSettingOptions {
+  transport?: "stream" | "websocket";
+  supportsStrictMode?: boolean;
+}
+
+/** Narrow host ports consumed by the built-in provider adapters. */
+export interface AiTransportHost {
+  /**
+   * Builds a policy-guarded fetch for one model request.
+   * Returning undefined keeps the provider SDK's default fetch.
+   */
+  buildModelFetch(
+    model: Model,
+    timeoutMs?: number,
+    options?: { sanitizeSse?: boolean },
+  ): typeof fetch | undefined;
+  /** Redacts secrets inside structured tool-result payloads. */
+  redactSecrets<T>(value: T): T;
+  /** Redacts secret-bearing text in tool payload strings. */
+  redactToolPayloadText(text: string): string;
+  /**
+   * Resolves the host strict-tool default for OpenAI-compatible routes.
+   * undefined lets the request omit the strict flag entirely.
+   */
+  resolveOpenAIStrictToolSetting(
+    model: Pick<Model, "provider" | "api" | "baseUrl" | "id"> & { compat?: unknown },
+    options?: OpenAIStrictToolSettingOptions,
+  ): boolean | undefined;
+  /**
+   * Emits one transport diagnostic; build runs only when the host logs it and
+   * may return null to suppress the entry (e.g. de-duplication).
+   */
+  logDebug(
+    subsystem: string,
+    build: () => { message: string; data?: Record<string, unknown> } | null,
+  ): void;
+}
+
+const inertAiTransportHost: AiTransportHost = {
+  buildModelFetch: () => undefined,
+  redactSecrets: (value) => value,
+  redactToolPayloadText: (text) => text,
+  resolveOpenAIStrictToolSetting: (_model, options) =>
+    options?.supportsStrictMode ? false : undefined,
+  logDebug: () => {},
+};
+
+let activeAiTransportHost = inertAiTransportHost;
+
+/** Installs host implementations for the transport policy ports. */
+export function configureAiTransportHost(host: Partial<AiTransportHost>): void {
+  activeAiTransportHost = { ...inertAiTransportHost, ...host };
+}
+
+/** Returns the active transport host (inert defaults unless configured). */
+export function getAiTransportHost(): AiTransportHost {
+  return activeAiTransportHost;
+}
--- a/packages/ai/src/index.ts
+++ b/packages/ai/src/index.ts
@ -0,0 +1,5 @@
+/** Reusable model API contracts, provider adapters, and streaming runtime. */
+export * from "@openclaw/llm-core";
+export * from "./api-registry.js";
+export * from "./host.js";
+export * from "./stream.js";
--- a/packages/ai/src/internal/anthropic.ts
+++ b/packages/ai/src/internal/anthropic.ts
@ -0,0 +1,7 @@
+export * from "../providers/anthropic.js";
+export * from "../providers/anthropic-auth-headers.js";
+export * from "../providers/anthropic-model-contract.js";
+export * from "../providers/anthropic-refusal.js";
+export * from "../providers/anthropic-server-fallback.js";
+export * from "../providers/anthropic-thinking-replay.js";
+export * from "../providers/anthropic-tool-projection.js";
--- a/packages/ai/src/internal/default-runtime.ts
+++ b/packages/ai/src/internal/default-runtime.ts
@ -0,0 +1,19 @@
+// Process-default registry/runtime retained for the OpenClaw compatibility
+// facade (src/llm). Deliberately not part of the public package API: external
+// consumers create isolated runtimes via createLlmRuntime(); exporting these
+// from the root barrel would reintroduce the mutable process-global registry.
+import { createApiRegistry } from "../api-registry.js";
+import { createLlmRuntime } from "../stream.js";
+
+export const defaultApiRegistry = createApiRegistry();
+export const defaultLlmRuntime = createLlmRuntime(defaultApiRegistry);
+
+export const {
+  registerApiProvider,
+  getApiProvider,
+  getApiProviders,
+  unregisterApiProviders,
+  clearApiProviders,
+} = defaultApiRegistry;
+
+export const { stream, complete, streamSimple, completeSimple } = defaultLlmRuntime;
--- a/packages/ai/src/internal/openai.ts
+++ b/packages/ai/src/internal/openai.ts
@ -0,0 +1,14 @@
+export * from "../providers/agent-tools-parameter-schema.js";
+export * from "../providers/azure-deployment-map.js";
+export * from "../providers/azure-openai-responses-client-compat.js";
+export * from "../providers/clean-for-gemini.js";
+export * from "../providers/openai-completions.js";
+export * from "../providers/openai-prompt-cache.js";
+export * from "../providers/openai-reasoning-effort.js";
+export * from "../providers/openai-responses.js";
+export * from "../providers/openai-responses-stream-compat.js";
+export * from "../providers/openai-stop-reason.js";
+export * from "../providers/openai-tool-projection.js";
+export * from "../providers/openai-tool-schema.js";
+export * from "../providers/schema-keyword-strip.js";
+export * from "../providers/tool-schema-json-projection.js";
--- a/packages/ai/src/internal/runtime.ts
+++ b/packages/ai/src/internal/runtime.ts
@ -0,0 +1,15 @@
+export * from "./default-runtime.js";
+export * from "../env-api-keys.js";
+export * from "../model-utils.js";
+export * from "../session-resources.js";
+export * from "../utils/deferred-event-buffer.js";
+export * from "../utils/hash.js";
+export * from "../utils/headers.js";
+export * from "../utils/json-parse.js";
+export * from "../utils/llm-request-activity.js";
+export * from "../utils/oauth/openai-chatgpt-jwt.js";
+export * from "../utils/overflow.js";
+export * from "../utils/reasoning-tag-text-partitioner.js";
+export * from "../utils/sanitize-unicode.js";
+export * from "../utils/stream-first-event-timeout.js";
+export * from "../utils/streaming-byte-guard.js";
--- a/packages/ai/src/internal/shared.ts
+++ b/packages/ai/src/internal/shared.ts
@ -0,0 +1,5 @@
+export * from "../providers/simple-options.js";
+export * from "../providers/tool-result-text.js";
+export * from "../providers/transform-messages.js";
+export * from "../utils/prompt-cache-stability.js";
+export * from "../utils/system-prompt-cache-boundary.js";
--- a/packages/ai/src/model-utils.ts
+++ b/packages/ai/src/model-utils.ts
--- a/packages/ai/src/providers.ts
+++ b/packages/ai/src/providers.ts
@ -0,0 +1,6 @@
+/** Lazy built-in protocol adapter registration. */
+export {
+  BUILT_IN_API_PROVIDER_SOURCE_ID,
+  registerBuiltInApiProviders,
+  resetApiProviders,
+} from "./providers/register-builtins.js";
--- a/packages/ai/src/providers/agent-tools-parameter-schema.ts
+++ b/packages/ai/src/providers/agent-tools-parameter-schema.ts
@ -5,20 +5,62 @@
 */
 import { isRecord as isSchemaRecord } from "@openclaw/normalization-core/record-coerce";
 import { normalizeLowercaseStringOrEmpty } from "@openclaw/normalization-core/string-coerce";
-import { uniqueValues } from "@openclaw/normalization-core/string-normalization";
-import type { TSchema } from "typebox";
-import type { ModelCompatConfig } from "../config/types.models.js";
 import {
-  resolveUnsupportedToolSchemaKeywords,
-  shouldOmitEmptyArrayItems,
-} from "../plugins/provider-model-compat.js";
-import { stripUnsupportedSchemaKeywords } from "../shared/schema-keyword-strip.js";
-import { cleanSchemaForGemini } from "./schema/clean-for-gemini.js";
+  normalizeStringEntries,
+  uniqueValues,
+} from "@openclaw/normalization-core/string-normalization";
+import type { TSchema } from "typebox";
+import { cleanSchemaForGemini } from "./clean-for-gemini.js";
+import { stripUnsupportedSchemaKeywords } from "./schema-keyword-strip.js";
+
+/**
+ * Narrow structural view of the host's model compat config. packages/ai must stay
+ * config-agnostic, so only tool-schema-relevant fields are modeled here; the host's
+ * ModelCompatConfig remains structurally assignable.
+ */
+export type ToolSchemaModelCompat = {
+  toolSchemaProfile?: string;
+  unsupportedToolSchemaKeywords?: string[];
+  omitEmptyArrayItems?: boolean;
+};
+
+/** Extracts the compat record whether callers pass a model (`{ compat }`) or the compat itself. */
+export function extractToolSchemaModelCompat(
+  modelOrCompat: { compat?: unknown } | ToolSchemaModelCompat | undefined,
+): ToolSchemaModelCompat | undefined {
+  if (!modelOrCompat || typeof modelOrCompat !== "object") {
+    return undefined;
+  }
+  if ("compat" in modelOrCompat) {
+    const compat = (modelOrCompat as { compat?: unknown }).compat;
+    return compat && typeof compat === "object" ? (compat as ToolSchemaModelCompat) : undefined;
+  }
+  return modelOrCompat as ToolSchemaModelCompat;
+}
+
+/** JSON Schema keywords this model/provider rejects in tool schemas. */
+export function resolveUnsupportedToolSchemaKeywords(
+  modelOrCompat: { compat?: unknown } | ToolSchemaModelCompat | undefined,
+): ReadonlySet<string> {
+  const keywords = extractToolSchemaModelCompat(modelOrCompat)?.unsupportedToolSchemaKeywords ?? [];
+  return new Set(
+    normalizeStringEntries(
+      keywords.filter((keyword): keyword is string => typeof keyword === "string"),
+    ),
+  );
+}
+
+/** Whether empty `items: {}` on array schemas must be omitted for this model/provider. */
+export function shouldOmitEmptyArrayItems(
+  modelOrCompat: { compat?: unknown } | ToolSchemaModelCompat | undefined,
+): boolean {
+  return extractToolSchemaModelCompat(modelOrCompat)?.omitEmptyArrayItems === true;
+}

 export type ToolParameterSchemaOptions = {
  modelProvider?: string;
  modelId?: string;
-  modelCompat?: ModelCompatConfig;
+  modelCompat?: ToolSchemaModelCompat;
 };

 const MAX_TOOL_PARAMETER_SCHEMA_CACHE_ENTRIES_PER_SCHEMA = 8;
--- a/packages/ai/src/providers/anthropic-auth-headers.ts
+++ b/packages/ai/src/providers/anthropic-auth-headers.ts
--- a/packages/ai/src/providers/anthropic-model-contract.ts
+++ b/packages/ai/src/providers/anthropic-model-contract.ts
@ -1,8 +1,5 @@
 // Model-bound thinking cannot be exposed or replayed after a model switch.
-import {
-  resolveClaudeFable5ModelIdentity,
-  resolveClaudeModelIdentity,
-} from "@openclaw/llm-core";
+import { resolveClaudeFable5ModelIdentity, resolveClaudeModelIdentity } from "@openclaw/llm-core";
 import { normalizeLowercaseStringOrEmpty } from "@openclaw/normalization-core/string-coerce";
 export {
  resolveClaudeFable5ModelIdentity,
--- a/packages/ai/src/providers/anthropic-refusal.ts
+++ b/packages/ai/src/providers/anthropic-refusal.ts
@ -1,4 +1,4 @@
-import type { AssistantMessageDiagnostic } from "../llm/types.js";
+import type { AssistantMessageDiagnostic } from "../types.js";

 type AnthropicRefusalOutput = {
  stopReason: string;
--- a/packages/ai/src/providers/anthropic-server-fallback.ts
+++ b/packages/ai/src/providers/anthropic-server-fallback.ts
@ -1,21 +1,12 @@
-import type { AssistantMessageDiagnostic } from "../llm/types.js";
+import type { AssistantMessageDiagnostic } from "../types.js";

-/**
- * Anthropic server-side refusal fallback (`server-side-fallback-2026-06-01`).
- * When Claude Fable 5 safety classifiers decline a request, the API re-serves
- * the same call on a permitted fallback model inside the same stream instead
- * of returning `stop_reason: "refusal"`.
- * https://platform.claude.com/docs/en/build-with-claude/refusals-and-fallback
- */
+/** Anthropic beta that re-serves safety refusals on an allowed fallback model. */
 export const ANTHROPIC_SERVER_SIDE_FALLBACK_BETA = "server-side-fallback-2026-06-01";

-// Anthropic contract: claude-opus-4-8 is the only entry in claude-fable-5's
-// published `allowed_fallback_models`; other targets are rejected up front.
+// Anthropic documents claude-opus-4-8 as the allowed fallback for claude-fable-5.
 export const CLAUDE_FABLE_5_FALLBACK_MODEL = "claude-opus-4-8";

-// Fallback-served turns bill at the serving model's rates (top-level usage
-// covers only that attempt), so cost math must switch off the Fable table.
-// Claude Opus 4.8 per-MTok pricing, same shape as the bundled Fable table.
+// Fallback-served turns bill at the serving model's rates.
 export const CLAUDE_FABLE_5_FALLBACK_MODEL_COST = {
  input: 5,
  output: 25,
@ -56,10 +47,8 @@ export function readAnthropicFallbackBoundary(block: unknown): AnthropicFallback
 }

 /**
- * Applies a mid-stream fallback boundary to the accumulated assistant output.
- * Anthropic's replay contract: pre-boundary thinking/tool_use blocks must not
- * be echoed on later turns (and dropped tool calls must never execute); the
- * pre-boundary text is the continuation prefix the fallback model built on.
+ * Drops pre-fallback thinking/tool calls while preserving the text prefix that
+ * the serving model continued. Dropped tool calls must never execute or replay.
 */
 export function applyAnthropicFallbackBoundary(params: {
  output: {
@ -73,9 +62,6 @@ export function applyAnthropicFallbackBoundary(params: {
  const { output, boundary } = params;
  const survivors = output.content.filter((block) => block.type === "text");
  for (const survivor of survivors) {
-    // Commentary phase tags refer to dropped pre-boundary tool calls; the
-    // prefix is now the start of the final answer, and phase-aware display
-    // extraction would otherwise hide it from the visible response.
    delete (survivor as { textSignature?: string }).textSignature;
  }
  output.content.splice(0, output.content.length, ...survivors);
--- a/packages/ai/src/providers/anthropic-thinking-replay.ts
+++ b/packages/ai/src/providers/anthropic-thinking-replay.ts
--- a/packages/ai/src/providers/anthropic-tool-projection.ts
+++ b/packages/ai/src/providers/anthropic-tool-projection.ts
--- a/packages/ai/src/providers/anthropic.test.ts
+++ b/packages/ai/src/providers/anthropic.test.ts
@ -1,7 +1,8 @@
 // Anthropic provider tests cover stream events, tools, and message mapping.
-import { beforeEach, describe, expect, it, vi } from "vitest";
-import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../../agents/system-prompt-cache-boundary.js";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { configureAiTransportHost } from "../host.js";
 import type { Context, Model, Tool } from "../types.js";
+import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../utils/system-prompt-cache-boundary.js";

 const anthropicMockState = vi.hoisted(() => ({
  configs: [] as unknown[],
@ -54,7 +55,14 @@ describe("Anthropic provider", () => {
    anthropicMockState.configs = [];
  });

+  afterEach(() => {
+    configureAiTransportHost({});
+  });
+
  it("keeps Cloudflare AI Gateway upstream provider auth on the Anthropic API key", async () => {
+    // Prove the Cloudflare client receives the host-built model fetch.
+    const hostFetch: typeof fetch = async () => new Response(null, { status: 500 });
+    configureAiTransportHost({ buildModelFetch: () => hostFetch });
    const model = makeAnthropicModel({
      provider: "cloudflare-ai-gateway",
      baseUrl: "https://gateway.ai.cloudflare.com/v1/account/gateway/anthropic/v1/messages",
@ -82,7 +90,7 @@ describe("Anthropic provider", () => {
    expect(config.authToken).toBeNull();
    expect(config.defaultHeaders?.["x-api-key"]).toBeUndefined();
    expect(config.defaultHeaders?.["cf-aig-authorization"]).toBe("Bearer gateway-token");
-    expect(typeof config.fetch).toBe("function");
+    expect(config.fetch).toBe(hostFetch);
  });

  it("uses bearer auth for Microsoft Foundry Anthropic requests", async () => {
--- a/packages/ai/src/providers/anthropic.ts
+++ b/packages/ai/src/providers/anthropic.ts
@ -8,42 +8,8 @@ import type {
  RawMessageStreamEvent,
  TextBlockParam,
 } from "@anthropic-ai/sdk/resources/messages.js";
-import {
-  projectAnthropicTools,
-  reconcileAnthropicToolChoice,
-  resolveOriginalAnthropicToolName,
-  type AnthropicProjectedToolChoice,
-  type AnthropicToolProjection,
-} from "../../agents/anthropic-tool-projection.js";
-import { resolveProviderEndpoint } from "../../agents/provider-attribution.js";
-import { buildGuardedModelFetch } from "../../agents/provider-transport-fetch.js";
-import {
-  splitSystemPromptCacheBoundary,
-  stripSystemPromptCacheBoundary,
-} from "../../agents/system-prompt-cache-boundary.js";
-import {
-  omitFoundryBearerCredentialHeaders,
-  usesFoundryBearerAuth,
-} from "../../shared/anthropic-auth-headers.js";
-import {
-  resolveClaudeNativeThinkingLevelMap,
-  requiresClaudeAdaptiveThinking,
-  supportsClaudeAdaptiveThinking,
-  supportsClaudeNativeMaxEffort,
-  supportsClaudeNativeXhighEffort,
-  usesClaudeFable5MessagesContract,
-} from "../../shared/anthropic-model-contract.js";
-import { applyAnthropicRefusal } from "../../shared/anthropic-refusal.js";
-import {
-  ANTHROPIC_SERVER_SIDE_FALLBACK_BETA,
-  CLAUDE_FABLE_5_FALLBACK_MODEL_COST,
-  applyAnthropicFallbackBoundary,
-  buildAnthropicServerSideFallbacks,
-  readAnthropicFallbackBoundary,
-} from "../../shared/anthropic-server-fallback.js";
-import { createDeferredEventBuffer } from "../../shared/deferred-event-buffer.js";
-import { notifyLlmRequestActivity } from "../../shared/llm-request-activity.js";
 import { getEnvApiKey } from "../env-api-keys.js";
+import { getAiTransportHost } from "../host.js";
 import { calculateCost, clampThinkingLevel } from "../model-utils.js";
 import type {
  AnthropicMessagesCompat,
@ -65,14 +31,47 @@ import type {
  ToolCall,
  ToolResultMessage,
 } from "../types.js";
+import { createDeferredEventBuffer } from "../utils/deferred-event-buffer.js";
 import { AssistantMessageEventStream } from "../utils/event-stream.js";
 import { headersToRecord } from "../utils/headers.js";
 import { parseJsonWithRepair, parseStreamingJson } from "../utils/json-parse.js";
+import { notifyLlmRequestActivity } from "../utils/llm-request-activity.js";
 import { sanitizeSurrogates } from "../utils/sanitize-unicode.js";
+import {
+  splitSystemPromptCacheBoundary,
+  stripSystemPromptCacheBoundary,
+} from "../utils/system-prompt-cache-boundary.js";
+import {
+  omitFoundryBearerCredentialHeaders,
+  usesFoundryBearerAuth,
+} from "./anthropic-auth-headers.js";
+import {
+  resolveClaudeNativeThinkingLevelMap,
+  requiresClaudeAdaptiveThinking,
+  supportsClaudeAdaptiveThinking,
+  supportsClaudeNativeMaxEffort,
+  supportsClaudeNativeXhighEffort,
+  usesClaudeFable5MessagesContract,
+} from "./anthropic-model-contract.js";
+import { applyAnthropicRefusal } from "./anthropic-refusal.js";
+import {
+  ANTHROPIC_SERVER_SIDE_FALLBACK_BETA,
+  CLAUDE_FABLE_5_FALLBACK_MODEL_COST,
+  applyAnthropicFallbackBoundary,
+  buildAnthropicServerSideFallbacks,
+  readAnthropicFallbackBoundary,
+} from "./anthropic-server-fallback.js";
 import {
  ANTHROPIC_OMITTED_REASONING_TEXT,
  findActiveAnthropicToolTurnAssistantIndex,
 } from "./anthropic-thinking-replay.js";
+import {
+  projectAnthropicTools,
+  reconcileAnthropicToolChoice,
+  resolveOriginalAnthropicToolName,
+  type AnthropicProjectedToolChoice,
+  type AnthropicToolProjection,
+} from "./anthropic-tool-projection.js";
 import { resolveCacheRetention } from "./cache-retention.js";
 import { resolveCloudflareBaseUrl } from "./cloudflare.js";
 import { buildCopilotDynamicHeaders, hasCopilotVisionInput } from "./github-copilot-headers.js";
@ -971,6 +970,17 @@ function isOAuthToken(apiKey: string): boolean {
  return apiKey.includes("sk-ant-oat");
 }

+function isAnthropicPublicEndpoint(baseUrl: string | undefined): boolean {
+  if (!baseUrl) {
+    return true;
+  }
+  try {
+    return new URL(baseUrl).hostname.toLowerCase() === "api.anthropic.com";
+  } catch {
+    return false;
+  }
+}
+
 /**
 * Server-side refusal fallback is a first-party Claude API beta: proxies and
 * Bedrock/Vertex/Foundry reject the `fallbacks` param, and OAuth (Claude Code
@ -980,8 +990,7 @@ function supportsAnthropicServerSideFallback(model: Model<"anthropic-messages">)
  if (!usesClaudeFable5MessagesContract(model) || model.provider !== "anthropic") {
    return false;
  }
-  const endpointClass = resolveProviderEndpoint(model.baseUrl).endpointClass;
-  return endpointClass === "default" || endpointClass === "anthropic-public";
+  return isAnthropicPublicEndpoint(model.baseUrl);
 }

 function createClient(
@ -1020,7 +1029,7 @@ function createClient(
        model.headers,
        optionsHeaders,
      ),
-      fetch: buildGuardedModelFetch(model),
+      fetch: getAiTransportHost().buildModelFetch(model),
    });

    return { client, isOAuthToken: false, serverSideFallback: false };
--- a/packages/ai/src/providers/azure-deployment-map.test.ts
+++ b/packages/ai/src/providers/azure-deployment-map.test.ts
--- a/packages/ai/src/providers/azure-deployment-map.ts
+++ b/packages/ai/src/providers/azure-deployment-map.ts
--- a/packages/ai/src/providers/azure-openai-responses-client-compat.ts
+++ b/packages/ai/src/providers/azure-openai-responses-client-compat.ts
--- a/packages/ai/src/providers/azure-openai-responses.test.ts
+++ b/packages/ai/src/providers/azure-openai-responses.test.ts
--- a/packages/ai/src/providers/azure-openai-responses.ts
+++ b/packages/ai/src/providers/azure-openai-responses.ts
@ -1,9 +1,8 @@
 // Azure OpenAI Responses provider adapts Azure deployments to Responses API streams.
 import OpenAI, { AzureOpenAI } from "openai";
 import type { ResponseCreateParamsStreaming } from "openai/resources/responses/responses.js";
-import { buildGuardedModelFetch } from "../../agents/provider-transport-fetch.js";
-import { isOpenAICompatibleAzureResponsesBaseUrl } from "../../shared/azure-openai-responses-client-compat.js";
 import { getEnvApiKey } from "../env-api-keys.js";
+import { getAiTransportHost } from "../host.js";
 import type {
  Context,
  Model,
@ -13,6 +12,7 @@ import type {
 } from "../types.js";
 import { AssistantMessageEventStream } from "../utils/event-stream.js";
 import { resolveAzureDeploymentNameFromMap } from "./azure-deployment-map.js";
+import { isOpenAICompatibleAzureResponsesBaseUrl } from "./azure-openai-responses-client-compat.js";
 import { clampOpenAIPromptCacheKey } from "./openai-prompt-cache.js";
 import {
  applyCommonResponsesParams,
@ -200,7 +200,7 @@ function createClient(
  }

  const { baseUrl, apiVersion } = resolveAzureConfig(model, options);
-  const guardedFetch = buildGuardedModelFetch({ ...model, baseUrl });
+  const guardedFetch = getAiTransportHost().buildModelFetch({ ...model, baseUrl });

  if (isOpenAICompatibleAzureResponsesBaseUrl(baseUrl)) {
    return new OpenAI({
--- a/packages/ai/src/providers/cache-retention.ts
+++ b/packages/ai/src/providers/cache-retention.ts
--- a/packages/ai/src/providers/clean-for-gemini.test.ts
+++ b/packages/ai/src/providers/clean-for-gemini.test.ts
--- a/packages/ai/src/providers/clean-for-gemini.ts
+++ b/packages/ai/src/providers/clean-for-gemini.ts
--- a/packages/ai/src/providers/cloudflare.ts
+++ b/packages/ai/src/providers/cloudflare.ts
--- a/packages/ai/src/providers/github-copilot-headers.ts
+++ b/packages/ai/src/providers/github-copilot-headers.ts
--- a/packages/ai/src/providers/google-shared.convert.test.ts
+++ b/packages/ai/src/providers/google-shared.convert.test.ts
--- a/packages/ai/src/providers/google-shared.parallel-image-repro.test.ts
+++ b/packages/ai/src/providers/google-shared.parallel-image-repro.test.ts
--- a/packages/ai/src/providers/google-shared.test-helpers.ts
+++ b/packages/ai/src/providers/google-shared.test-helpers.ts
--- a/packages/ai/src/providers/google-shared.test.ts
+++ b/packages/ai/src/providers/google-shared.test.ts
@ -1,9 +1,9 @@
 // Google shared provider tests cover response conversion and finish reasons.
 import { FinishReason, type GenerateContentResponse } from "@google/genai";
 import { describe, expect, it } from "vitest";
-import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../../agents/system-prompt-cache-boundary.js";
 import type { AssistantMessage, Model } from "../types.js";
 import { AssistantMessageEventStream } from "../utils/event-stream.js";
+import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../utils/system-prompt-cache-boundary.js";
 import {
  buildGoogleGenerateContentParams,
  consumeGoogleGenerateContentStream,
--- a/packages/ai/src/providers/google-shared.ts
+++ b/packages/ai/src/providers/google-shared.ts
@ -12,7 +12,6 @@ import {
  type Part,
  type ThinkingConfig,
 } from "@google/genai";
-import { stripSystemPromptCacheBoundary } from "../../agents/system-prompt-cache-boundary.js";
 import { calculateCost, clampThinkingLevel } from "../model-utils.js";
 import type {
  Api,
@ -32,6 +31,7 @@ import type {
 } from "../types.js";
 import type { AssistantMessageEventStream } from "../utils/event-stream.js";
 import { sanitizeSurrogates } from "../utils/sanitize-unicode.js";
+import { stripSystemPromptCacheBoundary } from "../utils/system-prompt-cache-boundary.js";
 import { describeToolResultMediaPlaceholder, extractToolResultText } from "./tool-result-text.js";
 import { transformMessages } from "./transform-messages.js";

--- a/packages/ai/src/providers/google-vertex.ts
+++ b/packages/ai/src/providers/google-vertex.ts
--- a/packages/ai/src/providers/google.ts
+++ b/packages/ai/src/providers/google.ts
--- a/packages/ai/src/providers/mistral.bounded-stream.test.ts
+++ b/packages/ai/src/providers/mistral.bounded-stream.test.ts
--- a/packages/ai/src/providers/mistral.test.ts
+++ b/packages/ai/src/providers/mistral.test.ts
@ -1,7 +1,8 @@
 // Mistral provider tests cover request mapping and stream conversion.
-import { beforeEach, describe, expect, it, vi } from "vitest";
-import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../../agents/system-prompt-cache-boundary.js";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { configureAiTransportHost } from "../host.js";
 import type { Context, Model } from "../types.js";
+import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../utils/system-prompt-cache-boundary.js";

 const mistralMockState = vi.hoisted(() => ({
  payloads: [] as unknown[],
@ -72,6 +73,10 @@ describe("Mistral provider", () => {
    mistralMockState.payloads = [];
  });

+  afterEach(() => {
+    configureAiTransportHost({});
+  });
+
  it("forwards simple stop sequences to Mistral stop", async () => {
    const stream = streamSimpleMistral(makeMistralModel(), context, {
      apiKey: "sk-mistral-provider",
@ -247,6 +252,10 @@ describe("Mistral provider", () => {
  });

  it("serializes structured non-image blocks in tool results as JSON text", async () => {
+    // Prove the host redaction port is applied to structured tool-result text.
+    configureAiTransportHost({
+      redactToolPayloadText: (text) => text.replaceAll('"value"', '"***"'),
+    });
    const testContext = {
      messages: [
        {
--- a/packages/ai/src/providers/mistral.ts
+++ b/packages/ai/src/providers/mistral.ts
@ -7,8 +7,6 @@ import type {
  ContentChunk,
  FunctionTool,
 } from "@mistralai/mistralai/models/components";
-import { createSseByteGuard } from "../../agents/streaming-byte-guard.js";
-import { stripSystemPromptCacheBoundary } from "../../agents/system-prompt-cache-boundary.js";
 import { getEnvApiKey } from "../env-api-keys.js";
 import { calculateCost, clampThinkingLevel } from "../model-utils.js";
 import type {
@ -29,6 +27,8 @@ import { AssistantMessageEventStream } from "../utils/event-stream.js";
 import { shortHash } from "../utils/hash.js";
 import { parseStreamingJson } from "../utils/json-parse.js";
 import { sanitizeSurrogates } from "../utils/sanitize-unicode.js";
+import { createSseByteGuard } from "../utils/streaming-byte-guard.js";
+import { stripSystemPromptCacheBoundary } from "../utils/system-prompt-cache-boundary.js";
 import { buildBaseOptions } from "./simple-options.js";
 import { describeToolResultMediaPlaceholder, extractToolResultText } from "./tool-result-text.js";
 import { transformMessages } from "./transform-messages.js";
--- a/packages/ai/src/providers/openai-chatgpt-responses.test.ts
+++ b/packages/ai/src/providers/openai-chatgpt-responses.test.ts
@ -3,8 +3,8 @@ import { zstdDecompressSync } from "node:zlib";
 // ChatGPT Responses provider tests cover stream handling and timeout behavior.
 import { MAX_TIMER_TIMEOUT_MS } from "@openclaw/normalization-core/number-coercion";
 import { afterEach, describe, expect, it, vi } from "vitest";
-import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../../agents/system-prompt-cache-boundary.js";
 import type { Context, Model } from "../types.js";
+import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../utils/system-prompt-cache-boundary.js";
 import {
  closeOpenAICodexWebSocketSessions,
  extractOpenAICodexAccountId,
--- a/packages/ai/src/providers/openai-chatgpt-responses.ts
+++ b/packages/ai/src/providers/openai-chatgpt-responses.ts
@ -30,13 +30,6 @@ import {
  resolveTimerTimeoutMs,
  clampTimerTimeoutMs,
 } from "@openclaw/normalization-core/number-coercion";
-import {
-  createFirstStreamEventAbortController,
-  getFirstStreamEventTimeoutHandler,
-  getFirstStreamEventTimeoutMs,
-} from "../../agents/stream-first-event-timeout.js";
-import { createSseByteGuard } from "../../agents/streaming-byte-guard.js";
-import { stripSystemPromptCacheBoundary } from "../../agents/system-prompt-cache-boundary.js";
 import { getEnvApiKey } from "../env-api-keys.js";
 import { registerSessionResourceCleanup } from "../session-resources.js";
 import type {
@ -57,6 +50,13 @@ import {
 import { AssistantMessageEventStream } from "../utils/event-stream.js";
 import { headersToRecord } from "../utils/headers.js";
 import { resolveOpenAICodexAccountId } from "../utils/oauth/openai-chatgpt-jwt.js";
+import {
+  createFirstStreamEventAbortController,
+  getFirstStreamEventTimeoutHandler,
+  getFirstStreamEventTimeoutMs,
+} from "../utils/stream-first-event-timeout.js";
+import { createSseByteGuard } from "../utils/streaming-byte-guard.js";
+import { stripSystemPromptCacheBoundary } from "../utils/system-prompt-cache-boundary.js";
 import { clampOpenAIPromptCacheKey } from "./openai-prompt-cache.js";
 import {
  convertResponsesMessages,
--- a/packages/ai/src/providers/openai-completions.test.ts
+++ b/packages/ai/src/providers/openai-completions.test.ts
@ -1,8 +1,9 @@
 // OpenAI completions tests cover chat completion stream adaptation.
 import type { ChatCompletionChunk } from "openai/resources/chat/completions.js";
 import { beforeEach, describe, expect, it, vi } from "vitest";
-import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../../agents/system-prompt-cache-boundary.js";
+import { configureAiTransportHost } from "../host.js";
 import type { Context, Model, SimpleStreamOptions } from "../types.js";
+import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../utils/system-prompt-cache-boundary.js";

 type DeepPartial<T> = { [P in keyof T]?: DeepPartial<T[P]> };
 type OpenAICompatibleDelta = DeepPartial<ChatCompletionChunk["choices"][number]["delta"]> & {
@ -160,10 +161,13 @@ function createNeverYieldingStream(): AsyncIterable<OpenAICompatibleChatCompleti
 }

 describe("OpenAI-compatible completions params", () => {
-  it("configures the OpenAI SDK client with guarded fetch", async () => {
+  it("configures the OpenAI SDK client with the host-built model fetch", async () => {
    mockOpenAIOptionsRef.options = [];
    mockChunksRef.chunks = [makeTextChunk("ok"), makeFinishChunk("stop")];
+    const hostFetch: typeof fetch = async () => new Response(null, { status: 500 });
+    configureAiTransportHost({ buildModelFetch: () => hostFetch });

+    try {
      const stream = streamOpenAICompletions(model, context, {
        apiKey: "sk-test",
      });
@ -175,9 +179,10 @@ describe("OpenAI-compatible completions params", () => {
        baseURL: "https://api.openai.com/v1",
        dangerouslyAllowBrowser: true,
      });
-    expect((mockOpenAIOptionsRef.options[0] as { fetch?: unknown }).fetch).toEqual(
-      expect.any(Function),
-    );
+      expect((mockOpenAIOptionsRef.options[0] as { fetch?: unknown }).fetch).toBe(hostFetch);
+    } finally {
+      configureAiTransportHost({});
+    }
  });

  it("fails when streaming headers arrive but no first SSE event follows", async () => {
--- a/packages/ai/src/providers/openai-completions.ts
+++ b/packages/ai/src/providers/openai-completions.ts
@ -11,25 +11,8 @@ import type {
  ChatCompletionSystemMessageParam,
  ChatCompletionToolMessageParam,
 } from "openai/resources/chat/completions.js";
-import {
-  projectOpenAITools,
-  reconcileOpenAICompletionsToolChoice,
-  type OpenAICompletionsToolChoice,
-  type OpenAIToolProjection,
-} from "../../agents/openai-tool-projection.js";
-import { buildGuardedModelFetch } from "../../agents/provider-transport-fetch.js";
-import {
-  createFirstStreamEventAbortController,
-  getFirstStreamEventTimeoutHandler,
-  getFirstStreamEventTimeoutMs,
-  withFirstStreamEventTimeout,
-} from "../../agents/stream-first-event-timeout.js";
-import {
-  splitSystemPromptCacheBoundary,
-  stripSystemPromptCacheBoundary,
-} from "../../agents/system-prompt-cache-boundary.js";
-import { createReasoningTagTextPartitioner } from "../../shared/text/reasoning-tag-text-partitioner.js";
 import { getEnvApiKey } from "../env-api-keys.js";
+import { getAiTransportHost } from "../host.js";
 import { calculateCost, clampThinkingLevel } from "../model-utils.js";
 import type {
  AssistantMessage,
@ -51,12 +34,29 @@ import type {
 import { AssistantMessageEventStream } from "../utils/event-stream.js";
 import { headersToRecord } from "../utils/headers.js";
 import { parseStreamingJson } from "../utils/json-parse.js";
+import { createReasoningTagTextPartitioner } from "../utils/reasoning-tag-text-partitioner.js";
 import { sanitizeSurrogates } from "../utils/sanitize-unicode.js";
+import {
+  createFirstStreamEventAbortController,
+  getFirstStreamEventTimeoutHandler,
+  getFirstStreamEventTimeoutMs,
+  withFirstStreamEventTimeout,
+} from "../utils/stream-first-event-timeout.js";
+import {
+  splitSystemPromptCacheBoundary,
+  stripSystemPromptCacheBoundary,
+} from "../utils/system-prompt-cache-boundary.js";
 import { resolveCacheRetention } from "./cache-retention.js";
 import { isCloudflareProvider, resolveCloudflareBaseUrl } from "./cloudflare.js";
 import { buildCopilotDynamicHeaders, hasCopilotVisionInput } from "./github-copilot-headers.js";
 import { clampOpenAIPromptCacheKey } from "./openai-prompt-cache.js";
 import { mapOpenAIStopReason } from "./openai-stop-reason.js";
+import {
+  projectOpenAITools,
+  reconcileOpenAICompletionsToolChoice,
+  type OpenAICompletionsToolChoice,
+  type OpenAIToolProjection,
+} from "./openai-tool-projection.js";
 import { buildBaseOptions } from "./simple-options.js";
 import { describeToolResultMediaPlaceholder, extractToolResultText } from "./tool-result-text.js";
 import { transformMessages } from "./transform-messages.js";
@ -638,7 +638,7 @@ function createClient(
    baseURL: isCloudflareProvider(model.provider) ? resolveCloudflareBaseUrl(model) : model.baseUrl,
    dangerouslyAllowBrowser: true,
    defaultHeaders,
-    fetch: buildGuardedModelFetch(model),
+    fetch: getAiTransportHost().buildModelFetch(model),
  });
 }

--- a/packages/ai/src/providers/openai-prompt-cache.ts
+++ b/packages/ai/src/providers/openai-prompt-cache.ts
--- a/packages/ai/src/providers/openai-reasoning-effort.test.ts
+++ b/packages/ai/src/providers/openai-reasoning-effort.test.ts
--- a/packages/ai/src/providers/openai-reasoning-effort.ts
+++ b/packages/ai/src/providers/openai-reasoning-effort.ts
--- a/packages/ai/src/providers/openai-responses-shared.test.ts
+++ b/packages/ai/src/providers/openai-responses-shared.test.ts
@ -3,10 +3,11 @@ import type {
  ResponseStreamEvent,
  Tool as OpenAIResponsesTool,
 } from "openai/resources/responses/responses.js";
-import { describe, expect, it, vi } from "vitest";
-import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../../agents/system-prompt-cache-boundary.js";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { configureAiTransportHost } from "../host.js";
 import type { AssistantMessage, AssistantMessageEvent, Context, Model, Tool } from "../types.js";
 import { AssistantMessageEventStream } from "../utils/event-stream.js";
+import { SYSTEM_PROMPT_CACHE_BOUNDARY } from "../utils/system-prompt-cache-boundary.js";
 import {
  applyCommonResponsesParams,
  createResponsesAssistantOutput,
@ -117,6 +118,23 @@ async function* responseEvents(events: Array<Record<string, unknown>>) {
 }

 describe("convertResponsesTools", () => {
+  beforeEach(() => {
+    // Mimic the OpenClaw host strict-tool policy: native OpenAI routes force
+    // strict=true, proxy-like routes leave the flag unset.
+    configureAiTransportHost({
+      resolveOpenAIStrictToolSetting: (model, options) => {
+        if (model.provider === "openai" && model.baseUrl === "https://api.openai.com/v1") {
+          return true;
+        }
+        return options?.supportsStrictMode ? false : undefined;
+      },
+    });
+  });
+
+  afterEach(() => {
+    configureAiTransportHost({});
+  });
+
  it("enables native strict OpenAI Responses tools and normalizes schemas", () => {
    const tools = [
      {
--- a/packages/ai/src/providers/openai-responses-shared.ts
+++ b/packages/ai/src/providers/openai-responses-shared.ts
@ -13,27 +13,6 @@ import type {
  ResponseReasoningItem,
  ResponseStreamEvent,
 } from "openai/resources/responses/responses.js";
-import {
-  resolveOpenAIReasoningEffortForModel,
-  supportsOpenAIReasoningEffort,
-} from "../../agents/openai-reasoning-effort.js";
-import {
-  createFirstStreamEventAbortController,
-  getFirstStreamEventTimeoutHandler,
-  getFirstStreamEventTimeoutMs,
-  type FirstStreamEventInternalOptions,
-  withFirstStreamEventTimeout,
-} from "../../agents/stream-first-event-timeout.js";
-import { stripSystemPromptCacheBoundary } from "../../agents/system-prompt-cache-boundary.js";
-import {
-  AZURE_RESPONSES_TEXT_CONTENT_PART_TYPE,
-  OPENAI_RESPONSES_OUTPUT_TEXT_CONTENT_PART_TYPE,
-  type AzureResponsesTextContentPart,
-  type AzureResponsesTextDeltaEvent,
-  isAzureResponsesTextDeltaEvent,
-  isResponsesTextContentPartType,
-  resolveResponsesMessageSnapshotCollapse,
-} from "../../shared/openai-responses-stream-compat.js";
 import { calculateCost, clampThinkingLevel } from "../model-utils.js";
 import type {
  Api,
@ -55,6 +34,27 @@ import { shortHash } from "../utils/hash.js";
 import { headersToRecord } from "../utils/headers.js";
 import { parseStreamingJson } from "../utils/json-parse.js";
 import { sanitizeSurrogates } from "../utils/sanitize-unicode.js";
+import {
+  createFirstStreamEventAbortController,
+  getFirstStreamEventTimeoutHandler,
+  getFirstStreamEventTimeoutMs,
+  type FirstStreamEventInternalOptions,
+  withFirstStreamEventTimeout,
+} from "../utils/stream-first-event-timeout.js";
+import { stripSystemPromptCacheBoundary } from "../utils/system-prompt-cache-boundary.js";
+import {
+  resolveOpenAIReasoningEffortForModel,
+  supportsOpenAIReasoningEffort,
+} from "./openai-reasoning-effort.js";
+import {
+  AZURE_RESPONSES_TEXT_CONTENT_PART_TYPE,
+  OPENAI_RESPONSES_OUTPUT_TEXT_CONTENT_PART_TYPE,
+  type AzureResponsesTextContentPart,
+  type AzureResponsesTextDeltaEvent,
+  isAzureResponsesTextDeltaEvent,
+  isResponsesTextContentPartType,
+  resolveResponsesMessageSnapshotCollapse,
+} from "./openai-responses-stream-compat.js";
 import { convertResponsesToolPayload, convertResponsesTools } from "./openai-responses-tools.js";
 import { describeToolResultMediaPlaceholder, extractToolResultText } from "./tool-result-text.js";
 import { transformMessages } from "./transform-messages.js";
--- a/packages/ai/src/providers/openai-responses-stream-compat.ts
+++ b/packages/ai/src/providers/openai-responses-stream-compat.ts
--- a/packages/ai/src/providers/openai-responses-tools.ts
+++ b/packages/ai/src/providers/openai-responses-tools.ts
@ -1,18 +1,14 @@
 // OpenAI Responses tool helpers convert runtime tools to Responses API schemas.
 import { createHash } from "node:crypto";
 import type { Tool as OpenAITool } from "openai/resources/responses/responses.js";
-import { resolveOpenAIStrictToolSetting } from "../../agents/openai-strict-tool-setting.js";
-import {
-  projectOpenAITools,
-  type OpenAIToolProjection,
-} from "../../agents/openai-tool-projection.js";
+import { getAiTransportHost } from "../host.js";
+import type { Model, Tool } from "../types.js";
+import { projectOpenAITools, type OpenAIToolProjection } from "./openai-tool-projection.js";
 import {
  findOpenAIStrictToolProjectionDiagnostics,
  normalizeOpenAIStrictToolParameters,
  resolveOpenAIProjectedToolsStrictToolFlag,
-} from "../../agents/openai-tool-schema.js";
-import { createSubsystemLogger } from "../../logging/subsystem.js";
-import type { Model, Tool } from "../types.js";
+} from "./openai-tool-schema.js";

 /** Options for converting internal tool schemas to OpenAI Responses function tools. */
 export interface ConvertResponsesToolsOptions {
@ -36,7 +32,7 @@ export type ConvertedResponsesTools = {
 };

 // Converts OpenClaw tool schemas to OpenAI Responses tools, including strict-mode compatibility.
-const log = createSubsystemLogger("llm/openai-responses");
+const LOG_SUBSYSTEM = "llm/openai-responses";
 const MAX_STRICT_TOOL_DOWNGRADE_DIAGNOSTIC_KEYS = 64;
 const loggedStrictToolDowngradeDiagnosticKeys = new Set<string>();

@ -83,7 +79,7 @@ function resolveResponsesStrictToolSetting(
    return options.strict;
  }
  if (options?.model) {
-    return resolveOpenAIStrictToolSetting(options.model, {
+    return getAiTransportHost().resolveOpenAIStrictToolSetting(options.model, {
      transport: "stream",
      supportsStrictMode: options.supportsStrictMode,
    });
@ -97,25 +93,29 @@ function resolveResponsesStrictToolFlag(
  model: Model | undefined,
 ): boolean | undefined {
  const strict = resolveOpenAIProjectedToolsStrictToolFlag(projection, strictSetting);
-  if (strictSetting === true && strict === false && model && log.isEnabled("debug", "any")) {
+  if (strictSetting === true && strict === false && model) {
+    getAiTransportHost().logDebug(LOG_SUBSYSTEM, () => {
      const diagnostics = findOpenAIStrictToolProjectionDiagnostics(projection);
-    if (shouldLogStrictToolDowngradeDiagnostic(diagnostics, model)) {
+      if (!shouldLogStrictToolDowngradeDiagnostic(diagnostics, model)) {
+        return null;
+      }
      const sample = diagnostics.slice(0, 5).map((entry) => ({
        tool: entry.toolName ?? `tool[${entry.toolIndex}]`,
        violations: entry.violations.slice(0, 8),
      }));
-      log.debug(
+      return {
+        message:
          `OpenAI responses tool schema strict mode downgraded to strict=false for ` +
          `${model.provider ?? "unknown"}/${model.id ?? "unknown"} because ` +
          `${diagnostics.length} tool schema(s) are not strict-compatible`,
-        {
+        data: {
          provider: model.provider,
          model: model.id,
          incompatibleToolCount: diagnostics.length,
          sample,
        },
-      );
-    }
+      };
+    });
  }
  return strict;
 }
--- a/packages/ai/src/providers/openai-responses.ts
+++ b/packages/ai/src/providers/openai-responses.ts
--- a/packages/ai/src/providers/openai-stop-reason.test.ts
+++ b/packages/ai/src/providers/openai-stop-reason.test.ts
--- a/packages/ai/src/providers/openai-stop-reason.ts
+++ b/packages/ai/src/providers/openai-stop-reason.ts
--- a/packages/ai/src/providers/openai-tool-projection.test.ts
+++ b/packages/ai/src/providers/openai-tool-projection.test.ts
--- a/packages/ai/src/providers/openai-tool-projection.ts
+++ b/packages/ai/src/providers/openai-tool-projection.ts
--- a/packages/ai/src/providers/openai-tool-schema.test.ts
+++ b/packages/ai/src/providers/openai-tool-schema.test.ts
--- a/packages/ai/src/providers/openai-tool-schema.ts
+++ b/packages/ai/src/providers/openai-tool-schema.ts
@ -3,9 +3,11 @@
 *
 * Caches normalized object inputs by provider compatibility so repeated inventory builds preserve identity.
 */
-import type { ModelCompatConfig } from "../config/types.models.js";
-import { shouldOmitEmptyArrayItems } from "../plugins/provider-model-compat.js";
-import { normalizeToolParameterSchema } from "./agent-tools-parameter-schema.js";
+import {
+  normalizeToolParameterSchema,
+  shouldOmitEmptyArrayItems,
+  type ToolSchemaModelCompat,
+} from "./agent-tools-parameter-schema.js";
 import type { OpenAIToolProjection } from "./openai-tool-projection.js";

 /**
@ -24,7 +26,7 @@ let strictOpenAISchemaCache = new WeakMap<object, Array<{ key: string; value: un

 function resolveToolSchemaModelCompat(
  compat: ToolSchemaCompatInput | null | undefined,
-): ModelCompatConfig | undefined {
+): ToolSchemaModelCompat | undefined {
  if (!compat) {
    return undefined;
  }
--- a/packages/ai/src/providers/register-builtins.ts
+++ b/packages/ai/src/providers/register-builtins.ts
@ -0,0 +1,164 @@
+// Built-in provider registration installs lazy protocol adapters.
+import type { ApiRegistry } from "../api-registry.js";
+import type {
+  Api,
+  AssistantMessage,
+  AssistantMessageEvent,
+  Model,
+  SimpleStreamOptions,
+  StreamFunction,
+  StreamOptions,
+} from "../types.js";
+import { AssistantMessageEventStream } from "../utils/event-stream.js";
+
+type ProviderStreams<TApi extends Api, TOptions extends StreamOptions> = {
+  stream: StreamFunction<TApi, TOptions>;
+  streamSimple: StreamFunction<TApi, SimpleStreamOptions>;
+};
+
+type RegisterBuiltIn = (registry: ApiRegistry) => void;
+
+/** Source id used for built-in API provider registrations. */
+export const BUILT_IN_API_PROVIDER_SOURCE_ID = "core:built-in";
+
+function forwardStream(
+  target: AssistantMessageEventStream,
+  source: AsyncIterable<AssistantMessageEvent>,
+): void {
+  void (async () => {
+    for await (const event of source) {
+      target.push(event);
+    }
+    target.end();
+  })();
+}
+
+function createLazyLoadErrorMessage<TApi extends Api>(
+  model: Model<TApi>,
+  error: unknown,
+): AssistantMessage {
+  return {
+    role: "assistant",
+    content: [],
+    api: model.api,
+    provider: model.provider,
+    model: model.id,
+    usage: {
+      input: 0,
+      output: 0,
+      cacheRead: 0,
+      cacheWrite: 0,
+      totalTokens: 0,
+      cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, total: 0 },
+    },
+    stopReason: "error",
+    errorMessage: error instanceof Error ? error.message : String(error),
+    timestamp: Date.now(),
+  };
+}
+
+// Provider modules load on first use, while callers still receive a stream synchronously.
+function createLazyStream<TApi extends Api, TOptions extends StreamOptions, TStreams>(
+  load: () => Promise<TStreams>,
+  select: (streams: TStreams) => StreamFunction<TApi, TOptions>,
+): StreamFunction<TApi, TOptions> {
+  return (model, context, options) => {
+    const outer = new AssistantMessageEventStream();
+    load()
+      .then((streams) => forwardStream(outer, select(streams)(model, context, options)))
+      .catch((error: unknown) => {
+        const message = createLazyLoadErrorMessage(model, error);
+        outer.push({ type: "error", reason: "error", error: message });
+        outer.end(message);
+      });
+    return outer;
+  };
+}
+
+function createLazyRegistration<TApi extends Api, TOptions extends StreamOptions, TModule>(
+  api: TApi,
+  importModule: () => Promise<TModule>,
+  select: (module: TModule) => ProviderStreams<TApi, TOptions>,
+): RegisterBuiltIn {
+  let streamsPromise: Promise<ProviderStreams<TApi, TOptions>> | undefined;
+  const load = () => (streamsPromise ??= importModule().then(select));
+  const stream = createLazyStream(load, (streams) => streams.stream);
+  const streamSimple = createLazyStream<TApi, SimpleStreamOptions, ProviderStreams<TApi, TOptions>>(
+    load,
+    (streams) => streams.streamSimple,
+  );
+  return (registry) => {
+    registry.registerApiProvider({ api, stream, streamSimple }, BUILT_IN_API_PROVIDER_SOURCE_ID);
+  };
+}
+
+const registerBuiltIns: RegisterBuiltIn[] = [
+  createLazyRegistration(
+    "anthropic-messages",
+    () => import("./anthropic.js"),
+    (module) => ({ stream: module.streamAnthropic, streamSimple: module.streamSimpleAnthropic }),
+  ),
+  createLazyRegistration(
+    "openai-completions",
+    () => import("./openai-completions.js"),
+    (module) => ({
+      stream: module.streamOpenAICompletions,
+      streamSimple: module.streamSimpleOpenAICompletions,
+    }),
+  ),
+  createLazyRegistration(
+    "mistral-conversations",
+    () => import("./mistral.js"),
+    (module) => ({ stream: module.streamMistral, streamSimple: module.streamSimpleMistral }),
+  ),
+  createLazyRegistration(
+    "openai-responses",
+    () => import("./openai-responses.js"),
+    (module) => ({
+      stream: module.streamOpenAIResponses,
+      streamSimple: module.streamSimpleOpenAIResponses,
+    }),
+  ),
+  createLazyRegistration(
+    "azure-openai-responses",
+    () => import("./azure-openai-responses.js"),
+    (module) => ({
+      stream: module.streamAzureOpenAIResponses,
+      streamSimple: module.streamSimpleAzureOpenAIResponses,
+    }),
+  ),
+  createLazyRegistration(
+    "openai-chatgpt-responses",
+    () => import("./openai-chatgpt-responses.js"),
+    (module) => ({
+      stream: module.streamOpenAICodexResponses,
+      streamSimple: module.streamSimpleOpenAICodexResponses,
+    }),
+  ),
+  createLazyRegistration(
+    "google-generative-ai",
+    () => import("./google.js"),
+    (module) => ({ stream: module.streamGoogle, streamSimple: module.streamSimpleGoogle }),
+  ),
+  createLazyRegistration(
+    "google-vertex",
+    () => import("./google-vertex.js"),
+    (module) => ({
+      stream: module.streamGoogleVertex,
+      streamSimple: module.streamSimpleGoogleVertex,
+    }),
+  ),
+];
+
+/** Registers every built-in API provider in one runtime registry. */
+export function registerBuiltInApiProviders(registry: ApiRegistry): void {
+  for (const register of registerBuiltIns) {
+    register(registry);
+  }
+}
+
+/** Restores the built-in provider registry state for tests. */
+export function resetApiProviders(registry: ApiRegistry): void {
+  registry.unregisterApiProviders(BUILT_IN_API_PROVIDER_SOURCE_ID);
+  registerBuiltInApiProviders(registry);
+}
--- a/packages/ai/src/providers/schema-keyword-strip.ts
+++ b/packages/ai/src/providers/schema-keyword-strip.ts
--- a/packages/ai/src/providers/simple-options.ts
+++ b/packages/ai/src/providers/simple-options.ts
--- a/packages/ai/src/providers/tool-result-text.test.ts
+++ b/packages/ai/src/providers/tool-result-text.test.ts
@ -2,73 +2,6 @@ import { describe, expect, it } from "vitest";
 import { describeToolResultMediaPlaceholder, extractToolResultText } from "./tool-result-text.js";

 describe("extractToolResultText", () => {
-  it("redacts structured secret fields with the shared tool-payload contract", () => {
-    const text = extractToolResultText([
-      {
-        type: "json",
-        apiToken: "api-token-value-1234567890",
-        privateKey: "private-key-value-1234567890",
-        private_key: "private-key-snake-1234567890",
-        key: "generic-key-value-1234567890",
-        keyMaterial: "key-material-value-1234567890",
-        bearerToken: "bearer-token-value-1234567890",
-        bearer_token: "bearer-token-snake-value-1234567890",
-        jwt: "jwt-value-1234567890",
-        session: "session-value-1234567890",
-        code: "code-value-1234567890",
-        error: { code: "ERR_VISIBLE_PROVIDER_CODE" },
-        oauth: { code: "OPAQUEPROVIDERCODE1234567890" },
-        providerError: { error: { code: "ERR_VISIBLE_PROVIDER_NESTED_CODE" } },
-        signature: "signature-value-1234567890",
-        cookie: "cookie-value-1234567890",
-        "set-cookie": "set-cookie-value-1234567890",
-        paymentCredential: "payment-credential-value-1234567890",
-        cardNumber: 4111111111111111,
-        cvc: 123,
-        text: '{"apiToken":"api-token-in-text-1234567890","code":"oauth-code-in-text-1234567890","safe":"ok"}',
-        credential: "live-credential-value",
-        appSecret: "app-secret-value",
-        rawSecret: "raw-secret-value",
-        nested: {
-          token: "nested-token-value",
-          visible: "safe-value",
-        },
-      },
-    ]);
-
-    expect(text).toContain('"credential":"');
-    expect(text).toContain('"appSecret":"');
-    expect(text).toContain('"rawSecret":"');
-    expect(text).toContain('"token":"');
-    expect(text).toContain('"visible":"safe-value"');
-    expect(text).toContain('"code":"ERR_VISIBLE_PROVIDER_CODE"');
-    expect(text).toContain('"code":"ERR_VISIBLE_PROVIDER_NESTED_CODE"');
-    expect(text).not.toContain("api-token-value-1234567890");
-    expect(text).not.toContain("private-key-value-1234567890");
-    expect(text).not.toContain("private-key-snake-1234567890");
-    expect(text).not.toContain("generic-key-value-1234567890");
-    expect(text).not.toContain("key-material-value-1234567890");
-    expect(text).not.toContain("bearer-token-value-1234567890");
-    expect(text).not.toContain("bearer-token-snake-value-1234567890");
-    expect(text).not.toContain("jwt-value-1234567890");
-    expect(text).not.toContain("session-value-1234567890");
-    expect(text).not.toContain("code-value-1234567890");
-    expect(text).not.toContain("OPAQUEPROVIDERCODE1234567890");
-    expect(text).not.toContain("signature-value-1234567890");
-    expect(text).not.toContain("cookie-value-1234567890");
-    expect(text).not.toContain("set-cookie-value-1234567890");
-    expect(text).not.toContain("payment-credential-value-1234567890");
-    expect(text).not.toContain("4111111111111111");
-    expect(text).not.toContain('"cvc":123');
-    expect(text).not.toContain("api-token-in-text-1234567890");
-    expect(text).not.toContain("oauth-code-in-text-1234567890");
-    expect(text).toContain('\\"safe\\":\\"ok\\"');
-    expect(text).not.toContain("live-credential-value");
-    expect(text).not.toContain("app-secret-value");
-    expect(text).not.toContain("raw-secret-value");
-    expect(text).not.toContain("nested-token-value");
-  });
-
  it("keeps media-only blocks out of provider replay text", () => {
    const text = extractToolResultText([
      { type: "text", text: "summary" },
--- a/packages/ai/src/providers/tool-result-text.ts
+++ b/packages/ai/src/providers/tool-result-text.ts
@ -1,6 +1,6 @@
 import { isRecord } from "@openclaw/normalization-core/record-coerce";
-import { redactSecrets, redactToolPayloadText } from "../../logging/redact.js";
-import { truncateUtf16Safe } from "../../shared/utf16-slice.js";
+import { truncateUtf16Safe } from "@openclaw/normalization-core/utf16-slice";
+import { getAiTransportHost } from "../host.js";
 import { sanitizeSurrogates } from "../utils/sanitize-unicode.js";

 const PROVIDER_TOOL_RESULT_MAX_CHARS = 8000;
@ -55,13 +55,14 @@ function redactInlineDataUris(value: string): string {
 }

 function redactStructuredTextValue(value: string): string {
-  const redacted = redactToolPayloadText(value);
+  const host = getAiTransportHost();
+  const redacted = host.redactToolPayloadText(value);
  const trimmed = redacted.trim();
  if (!trimmed.startsWith("{") && !trimmed.startsWith("[")) {
    return redacted;
  }
  try {
-    const redactedWrapper = redactSecrets({ structuredTextValue: JSON.parse(redacted) });
+    const redactedWrapper = host.redactSecrets({ structuredTextValue: JSON.parse(redacted) });
    return JSON.stringify(redactedWrapper.structuredTextValue);
  } catch {
    return redacted;
@ -71,7 +72,7 @@ function redactStructuredTextValue(value: string): string {
 function stringifyStructuredBlock(block: Record<string, unknown>): string | undefined {
  const seen = new WeakSet<object>();
  try {
-    const redactedWrapper = redactSecrets({ structuredToolResult: block });
+    const redactedWrapper = getAiTransportHost().redactSecrets({ structuredToolResult: block });
    const redactedBlock = redactedWrapper.structuredToolResult;
    const serialized = JSON.stringify(
      redactedBlock,
--- a/packages/ai/src/providers/tool-schema-json-projection.ts
+++ b/packages/ai/src/providers/tool-schema-json-projection.ts
--- a/packages/ai/src/providers/transform-messages.ts
+++ b/packages/ai/src/providers/transform-messages.ts
@ -1,4 +1,3 @@
-import { resolveModelBoundThinkingReplayMode } from "../../shared/anthropic-model-contract.js";
 // Provider message transform helpers convert runtime messages to provider payloads.
 import type {
  Api,
@ -10,6 +9,7 @@ import type {
  ToolCall,
  ToolResultMessage,
 } from "../types.js";
+import { resolveModelBoundThinkingReplayMode } from "./anthropic-model-contract.js";

 const NON_VISION_USER_IMAGE_PLACEHOLDER = "(image omitted: model does not support images)";
 const NON_VISION_TOOL_IMAGE_PLACEHOLDER = "(tool image omitted: model does not support images)";
--- a/packages/ai/src/session-resources.ts
+++ b/packages/ai/src/session-resources.ts
--- a/packages/ai/src/stream.ts
+++ b/packages/ai/src/stream.ts
@ -0,0 +1,59 @@
+// LLM Runtime module implements stream behavior.
+import type {
+  Api,
+  AssistantMessage,
+  AssistantMessageEventStreamContract,
+  Context,
+  Model,
+  ProviderStreamOptions,
+  SimpleStreamOptions,
+  StreamOptions,
+} from "@openclaw/llm-core";
+import { createApiRegistry, type ApiRegistry } from "./api-registry.js";
+
+/** Creates an isolated LLM runtime backed by the supplied provider registry. */
+export function createLlmRuntime(registry: ApiRegistry = createApiRegistry()) {
+  function resolveApiProvider(api: Api) {
+    const provider = registry.getApiProvider(api);
+    if (!provider) {
+      throw new Error(`No API provider registered for api: ${api}`);
+    }
+    return provider;
+  }
+
+  function stream<TApi extends Api>(
+    model: Model<TApi>,
+    context: Context,
+    options?: ProviderStreamOptions,
+  ): AssistantMessageEventStreamContract {
+    return resolveApiProvider(model.api).stream(model, context, options as StreamOptions);
+  }
+
+  async function complete<TApi extends Api>(
+    model: Model<TApi>,
+    context: Context,
+    options?: ProviderStreamOptions,
+  ): Promise<AssistantMessage> {
+    return stream(model, context, options).result();
+  }
+
+  function streamSimple<TApi extends Api>(
+    model: Model<TApi>,
+    context: Context,
+    options?: SimpleStreamOptions,
+  ): AssistantMessageEventStreamContract {
+    return resolveApiProvider(model.api).streamSimple(model, context, options);
+  }
+
+  async function completeSimple<TApi extends Api>(
+    model: Model<TApi>,
+    context: Context,
+    options?: SimpleStreamOptions,
+  ): Promise<AssistantMessage> {
+    return streamSimple(model, context, options).result();
+  }
+
+  return { registry, stream, complete, streamSimple, completeSimple };
+}
+
+export type LlmRuntime = ReturnType<typeof createLlmRuntime>;
--- a/packages/ai/src/types.ts
+++ b/packages/ai/src/types.ts
@ -0,0 +1,2 @@
+/** Shared model, message, tool, and streaming contracts. */
+export * from "@openclaw/llm-core";
--- a/packages/ai/src/utils/deferred-event-buffer.ts
+++ b/packages/ai/src/utils/deferred-event-buffer.ts
--- a/packages/ai/src/utils/diagnostics.ts
+++ b/packages/ai/src/utils/diagnostics.ts
@ -0,0 +1,2 @@
+/** Shared provider diagnostics. */
+export * from "@openclaw/llm-core/diagnostics";
--- a/packages/ai/src/utils/event-stream.ts
+++ b/packages/ai/src/utils/event-stream.ts
@ -0,0 +1,2 @@
+/** Assistant message event stream implementation. */
+export * from "@openclaw/llm-core/event-stream";
--- a/packages/ai/src/utils/hash.ts
+++ b/packages/ai/src/utils/hash.ts
--- a/packages/ai/src/utils/headers.ts
+++ b/packages/ai/src/utils/headers.ts
--- a/packages/ai/src/utils/json-parse.ts
+++ b/packages/ai/src/utils/json-parse.ts
--- a/packages/ai/src/utils/llm-request-activity.ts
+++ b/packages/ai/src/utils/llm-request-activity.ts
--- a/packages/ai/src/utils/oauth/openai-chatgpt-jwt.ts
+++ b/packages/ai/src/utils/oauth/openai-chatgpt-jwt.ts
--- a/Show more
+++ b/Show more