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The whole point of slice 39's hand-authored manifest with
snake_case names and stable error codes was to make adapter
projection cheap. This slice is the test: a minimal MCP (Model
Context Protocol) server that turns Pulse's manifest into a tool
surface Claude Desktop, Claude Code, and other MCP-speaking
clients can drive natively.
Every MCP tool is a one-line projection of a manifest capability.
Input schemas are auto-derived from path placeholders ({name}
segments become required string properties) and method (non-
GET/DELETE tools accept a free-form body object). Adding a
capability to the manifest automatically extends the tool surface
— no MCP-side changes required.
The adapter is stdlib-only, runs over stdio with line-delimited
JSON-RPC 2.0 framing, preserves Pulse's stable error envelope
verbatim through MCP's content-and-isError result so agents on
the MCP side branch on the same codes they would on the wire,
and skips subscribe_events (SSE streaming doesn't fit the
request/response tool shape; future slices can layer it as MCP
notifications).
Eleven tests pin the projection rules and the JSON-RPC contract:
path-placeholder schema generation, body-property method gating,
substitution failures producing stable errors, the initialize
handshake advertising tools, tools/list filtering subscribe_events,
tools/call proxying with the bearer token and preserving the
substrate's error envelope, unknown methods producing JSON-RPC
method-not-found, and notifications producing no response.
The substrate is now wrapped in two adapters, each demonstrating a
different consumer profile: agent-probe walks the substrate as an
HTTP client (slice 49); pulse-mcp wraps it for stdio MCP clients.
Both depend only on the standard library and resolve paths from
the manifest, so the substrate is the single source of truth and
adapter additions stay cheap.
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|---|---|---|
| .. | ||
| agent-probe | ||
| eval | ||
| hashpw | ||
| pulse | ||
| pulse-agent | ||
| pulse-control-plane | ||
| pulse-mcp | ||