diff --git a/EVIDENCE_TIMELINE.md b/EVIDENCE_TIMELINE.md
index 97e088f8..c463b3ad 100644
--- a/EVIDENCE_TIMELINE.md
+++ b/EVIDENCE_TIMELINE.md
@@ -1,22 +1,54 @@
+
+
# EVIDENCE_TIMELINE
-🕰️ Historical evidence timeline for WFGY.
+Historical evidence timeline for WFGY.
This page records how WFGY became real, usable, public, and externally legible over time.
-It is not limited to third-party adoption only.
-It also tracks the major moments when the WFGY line itself became more concrete, more teachable, more reproducible, or more visible to the outside world.
+WFGY did not begin with a large installed base, a built-in distribution channel, or a ready-made institutional wrapper.
+It was built in public, piece by piece, through theory, application surfaces, diagnostic maps, teaching layers, evaluation artifacts, and eventually public ecosystem proof.
You can read this page as a compact historical route:
-**build → structure → teaching → evaluation → public proof**
+**cold start → structure → teaching → evaluation → public proof**
-Related pages:
+## Quick navigation
+
+- [What this page is](#what-this-page-is)
+- [What this page is not](#what-this-page-is-not)
+- [Timeline](#timeline)
+ - [Cold Start Era](#cold-start-era)
+ - [Diagnostic Wedge Era](#diagnostic-wedge-era)
+ - [Expansion Era](#expansion-era)
+ - [Public Proof Era](#public-proof-era)
+- [What this timeline currently shows](#what-this-timeline-currently-shows)
+- [Maintenance rules](#maintenance-rules)
+- [Related pages](#related-pages)
+
+## Related pages
+
+Core proof and interpretation:
* [ADOPTERS](./ADOPTERS.md)
* [CASE_EVIDENCE](./CASE_EVIDENCE.md)
* [Recognition Map](./recognition/README.md)
+
+Collaboration and next-layer packaging:
+
* [Work with WFGY](./WORK_WITH_WFGY.md)
+* [Pilot Offer One-Pager](./PILOT_OFFER_ONE_PAGER.md)
+* [Sample Deliverable](./SAMPLE_DELIVERABLE.md)
+
+Structure and reference:
+
+* [Ecosystem Map](./ECOSYSTEM_MAP.md)
+* [Problem Map 1.0](./ProblemMap/README.md)
+* [Repository Citation Metadata](./CITATION.cff)
+
+---
+
+
## What this page is
@@ -33,6 +65,17 @@ It combines three kinds of milestones:
3. **Packaging milestones**
when WFGY itself became easier to audit, route, reuse, or evaluate from the outside
+This page sits between two other proof surfaces:
+
+* [ADOPTERS](./ADOPTERS.md), which gives the shortest high-signal summary
+* [Recognition Map](./recognition/README.md), which remains the broader ecosystem ledger
+
+It also supports the interpretation layer in [CASE_EVIDENCE](./CASE_EVIDENCE.md).
+
+---
+
+
+
## What this page is not
This page is not:
@@ -44,27 +87,35 @@ This page is not:
* a claim that every milestone has equal weight
For the shortest high-signal summary, use [ADOPTERS](./ADOPTERS.md).
-For the full ledger, use the [Recognition Map](./recognition/README.md).
+For the broader ledger, use the [Recognition Map](./recognition/README.md).
+For cross-case interpretation, use [CASE_EVIDENCE](./CASE_EVIDENCE.md).
---
+
+
# Timeline
-## 2025/06/15 · 🧱 WFGY 1.0 becomes the baseline public reference
+
+
+## Cold Start Era
+
+The earliest phase of WFGY was a cold-start build.
+This period matters because it shows the stack did not begin as a polished ecosystem surface. It began as a public baseline, then slowly gained structure.
+
+### 2025/06/15 · WFGY 1.0 becomes the baseline public reference
**Track**
Internal milestone
**What became public**
-[WFGY 1.0](https://github.com/onestardao/WFGY/blob/main/legacy/README.md) established the project home and the earliest baseline reference for the WFGY line.
+[WFGY 1.0](https://github.com/onestardao/WFGY/) established the project home and the earliest baseline reference for the WFGY line.
**Why this matters**
This is the starting point of the public WFGY stack.
It marks the moment when the project stopped being private intuition and became a public reference surface.
----
-
-## 2025/07/02 · 🧩 TXTOS opens the application layer
+### 2025/07/02 · TXTOS opens the application layer
**Track**
Internal milestone
@@ -76,9 +127,7 @@ Internal milestone
This widened WFGY from theory into application surfaces.
It showed that the project was not only about concepts, but also about structured usage.
----
-
-## 2025/07/15 · 🔧 Blah Blah Blah extends the TXTOS stack
+### 2025/07/15 · Blah Blah Blah extends the TXTOS stack
**Track**
Internal milestone
@@ -89,9 +138,18 @@ Internal milestone
**Why this matters**
This is one of the earlier signs that WFGY was growing as a family of connected modules rather than a single page or one-off idea.
+[Back to top](#top)
+
---
-## 2025/07/28 · 🗺️ Problem Map 1.0 becomes the practical wedge
+
+
+## Diagnostic Wedge Era
+
+This is the phase where WFGY became much easier for outside teams to understand.
+The project gained a practical wedge, especially through structured failure diagnosis and teaching surfaces.
+
+### 2025/07/28 · Problem Map 1.0 becomes the practical wedge
**Track**
Internal milestone
@@ -103,9 +161,7 @@ Internal milestone
This is one of the most important turning points in the whole timeline.
It gave WFGY a practical front door that real RAG and agent teams could understand quickly.
----
-
-## 2025/07/28 · 🩺 Semantic Clinic expands the teaching layer
+### 2025/07/28 · Semantic Clinic expands the teaching layer
**Track**
Internal milestone
@@ -116,9 +172,7 @@ Internal milestone
**Why this matters**
It showed that WFGY was not only classifying failures, but also teaching people how to reason about them.
----
-
-## 2025/07/30 · 🧠 Semantic Blueprint deepens the theory layer
+### 2025/07/30 · Semantic Blueprint deepens the theory layer
**Track**
Internal milestone
@@ -129,9 +183,7 @@ Internal milestone
**Why this matters**
This strengthened the internal architecture story behind the public-facing maps and teaching pages.
----
-
-## 2025/09/05 · 🛠️ Global Fix Map extends beyond one checklist
+### 2025/09/05 · Global Fix Map extends beyond one checklist
**Track**
Internal milestone
@@ -142,9 +194,7 @@ Internal milestone
**Why this matters**
This is where the scope clearly widened from a single 16-problem entry map into a broader systems-facing fix library.
----
-
-## 2025/09/14 · 👵 Grandma Clinic turns the map into memory-friendly teaching
+### 2025/09/14 · Grandma Clinic turns the map into memory-friendly teaching
**Track**
Internal milestone
@@ -155,9 +205,21 @@ Internal milestone
**Why this matters**
This made the WFGY diagnostic layer more memorable and easier to teach beyond narrowly technical audiences.
+**Related layer**
+For the broader diagnostic line, see [Problem Map 1.0](./ProblemMap/README.md) and the future-facing structure in [Ecosystem Map](./ECOSYSTEM_MAP.md).
+
+[Back to top](#top)
+
---
-## 2026/01/31 · 🌌 WFGY 3.0 Singularity Demo opens the frontier evaluation layer
+
+
+## Expansion Era
+
+This phase matters because WFGY stopped being only a diagnostic and teaching surface.
+It began to open toward broader evaluation and higher-order reasoning layers.
+
+### 2026/01/31 · WFGY 3.0 Singularity Demo opens the frontier evaluation layer
**Track**
Internal milestone
@@ -169,9 +231,33 @@ Internal milestone
This is a major expansion of the WFGY line.
It pushed the project from diagnostic and teaching surfaces into a more ambitious evaluation and reasoning arena.
+### 2026/03/03 · Problem Map 2.0 Global Debug Card turns the map into image protocol
+
+**Track**
+Internal milestone
+
+**What became public**
+[Problem Map 2.0 Global Debug Card](https://github.com/onestardao/WFGY/releases/tag/WFGY-Global-Debug-Card) was released as an image-first diagnostic protocol for RAG runs.
+
+**Why this matters**
+This is a major packaging milestone.
+It compressed the WFGY diagnostic line into a faster, more shareable, more reusable format across platforms and models.
+
+**Related layer**
+This milestone connects naturally to [CASE_EVIDENCE](./CASE_EVIDENCE.md), [ADOPTERS](./ADOPTERS.md), and the future-facing collaboration surface in [Work with WFGY](./WORK_WITH_WFGY.md).
+
+[Back to top](#top)
+
---
-## 2026/02/17 · 🌍 ToolUniverse shows tool-level public integration
+
+
+## Public Proof Era
+
+This is the phase where outside projects began to make the signal legible in public.
+It does not mean universal adoption. It does mean the WFGY wedge became harder to ignore.
+
+### 2026/02/17 · ToolUniverse shows tool-level public integration
**Track**
Public ecosystem milestone
@@ -183,9 +269,7 @@ ToolUniverse publicly merged a WFGY-related triage surface through [PR #75](http
This is stronger than a loose mention.
It suggests that WFGY could be wrapped into an actionable tool pathway, not only cited as an idea.
----
-
-## 2026/02/20 · 📚 Rankify and Multimodal RAG Survey widen the external signal
+### 2026/02/20 · Rankify and Multimodal RAG Survey widen the external signal
**Track**
Public ecosystem milestone
@@ -199,9 +283,7 @@ This date matters because the signal diversified.
WFGY was no longer visible in only one style of external context.
It was starting to appear across both practical docs and research-facing material.
----
-
-## 2026/02/23 · 🚪 LlamaIndex makes the wedge more mainstream
+### 2026/02/23 · LlamaIndex makes the wedge more mainstream
**Track**
Public ecosystem milestone
@@ -213,9 +295,7 @@ Public ecosystem milestone
This is one of the clearest mainstream ecosystem signals in the timeline.
It shows that structured WFGY-style failure mapping is legible inside a major public RAG stack.
----
-
-## 2026/02/25 · 🧯 RAGFlow strengthens the operational debugging signal
+### 2026/02/25 · RAGFlow strengthens the operational debugging signal
**Track**
Public ecosystem milestone
@@ -227,9 +307,7 @@ Public ecosystem milestone
This strongly reinforces the practical wedge of WFGY.
It shows the map is useful in operational debugging contexts, not only in teaching or theory.
----
-
-## 2026/03/01 · 🔍 FlashRAG reinforces cross-stack reuse
+### 2026/03/01 · FlashRAG reinforces cross-stack reuse
**Track**
Public ecosystem milestone
@@ -241,23 +319,7 @@ Public ecosystem milestone
By this point, the pattern is harder to dismiss as an isolated one-off.
The same wedge is being adapted across multiple public stacks.
----
-
-## 2026/03/03 · 🖼️ Problem Map 2.0 Global Debug Card turns the map into image protocol
-
-**Track**
-Internal milestone
-
-**What became public**
-[Problem Map 2.0 Global Debug Card](https://github.com/onestardao/WFGY/releases/tag/WFGY-Global-Debug-Card) was released as an image-first diagnostic protocol for RAG runs.
-
-**Why this matters**
-This is a major packaging milestone.
-It compressed the WFGY diagnostic line into a faster, more shareable, more reusable format across platforms and models.
-
----
-
-## 2026/03/04 · 🤖 LightAgent extends the signal into multi-agent territory
+### 2026/03/04 · LightAgent extends the signal into multi-agent territory
**Track**
Public ecosystem milestone
@@ -268,9 +330,7 @@ Public ecosystem milestone
**Why this matters**
This matters because it widened the visible wedge beyond classic RAG debugging and into multi-agent coordination and failure diagnosis.
----
-
-## 2026/03/08 · 🧭 Public proof becomes a first-class routing layer in WFGY
+### 2026/03/08 · Public proof becomes a first-class routing layer in WFGY
**Track**
Packaging milestone
@@ -288,38 +348,38 @@ It also exposes a dedicated collaboration entry through [Work with WFGY](./WORK_
This does not create new third-party proof by itself.
What it does is make the accumulated evidence auditable, legible, and much easier to evaluate in one pass.
+**Related layer**
+This stage naturally leads into [Pilot Offer One-Pager](./PILOT_OFFER_ONE_PAGER.md) and [Sample Deliverable](./SAMPLE_DELIVERABLE.md), where public proof can later connect to a more structured collaboration surface.
+
+[Back to top](#top)
+
---
+
+
# What this timeline currently shows
-📌 At the current stage, the historical pattern is fairly clear.
+The pattern is not random.
-WFGY did not appear all at once as one finished artifact.
-It grew in layers.
+WFGY first became public as a baseline reference.
+Then it grew application surfaces.
+Then it found a practical wedge through the Problem Map line.
+Then it expanded into teaching systems, broader fix systems, evaluation surfaces, and finally visible public proof across outside ecosystems.
-The rough sequence looks like this:
-
-1. **baseline and theory**
-2. **application surfaces**
-3. **diagnostic maps**
-4. **teaching and fix systems**
-5. **frontier evaluation**
-6. **external ecosystem proof**
-7. **public packaging and collaboration routing**
-
-That matters because it shows continuity.
+This matters because it shows continuity under cold-start conditions.
The strongest external wedge today still appears to be the **Problem Map line**, especially the structured debugging and failure-classification layer.
That is the part that became easiest for outside projects to understand, adapt, and reuse.
-At the same time, the internal timeline shows that WFGY is broader than that wedge alone.
-The project has also been building theory surfaces, application surfaces, and frontier evaluation surfaces in parallel.
+At the same time, this timeline also shows that WFGY is broader than that wedge alone.
+The wider stack has been built in parallel, even if public proof is currently strongest on the diagnostic side.
## Safest reading
The safest disciplined reading today is:
* WFGY has a real historical build-up, not a sudden one-page appearance
+* it was built under cold-start conditions, in public, layer by layer
* the system became practical through the Problem Map line
* the strongest public adoption signal still clusters around diagnostic and debugging use
* the broader WFGY stack is larger than that single wedge, but public proof is currently strongest there
@@ -327,9 +387,11 @@ The safest disciplined reading today is:
---
+
+
# Maintenance rules
-🧾 When updating this page:
+When updating this page:
1. Keep the timeline chronological.
2. Prefer dates when something became publicly visible in stable form.
@@ -337,17 +399,31 @@ The safest disciplined reading today is:
4. Do not retroactively inflate old events into stronger claims.
5. If a milestone is important but weak, move it to the [Recognition Map](./recognition/README.md) instead.
6. If an event belongs mainly to explanation rather than chronology, keep it in [CASE_EVIDENCE](./CASE_EVIDENCE.md).
+7. If a future page becomes the canonical destination for a subtopic, keep this page concise and link outward instead of duplicating full explanations.
---
+
+
# Related pages
+Proof surfaces:
+
* [ADOPTERS](./ADOPTERS.md)
* [CASE_EVIDENCE](./CASE_EVIDENCE.md)
* [Recognition Map](./recognition/README.md)
+
+Collaboration surfaces:
+
* [Work with WFGY](./WORK_WITH_WFGY.md)
+* [Pilot Offer One-Pager](./PILOT_OFFER_ONE_PAGER.md)
+* [Sample Deliverable](./SAMPLE_DELIVERABLE.md)
+
+Structure and reference:
+
+* [Ecosystem Map](./ECOSYSTEM_MAP.md)
* [Problem Map 1.0](./ProblemMap/README.md)
-* [Problem Map 2.0 Global Debug Card](https://github.com/onestardao/WFGY/releases/tag/WFGY-Global-Debug-Card)
+* [Repository Citation Metadata](./CITATION.cff)
---