docs + chore(release): 3.0.0

Documents the merged ecosystem_activity commit-row repo field and the
flattened ci_diagnosis failedJobs log, and cuts the 3.0.0 release
carrying this second token-cost pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: AlbinoGeek

CHANGELOG.md

@@ -9,6 +9,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.0.0] — 2026-07-04
+
+A second token-cost pass, this time on two per-row/per-job repetitions in
+larger multi-item payloads.
+
+### Breaking Changes
+
+- **`ecosystem_activity`**: JSON `commits[]` entries no longer carry separate `owner` and `repo` fields — merged into a single `repo: "owner/name"` field. (The per-repo `repos[]` summary is unaffected and still reports `owner`/`repo` separately, once per repo rather than once per commit.) `format=markdown` output is unchanged (already rendered `owner/repo` combined).
+- **`ci_diagnosis`**: JSON `failedJobs[]` entries no longer wrap the log in a `failedSteps: [{ name: "logs", log }]` array — `name` was always the literal string `"logs"`, pure repetition with no information. Each entry now has `log` directly: `{ name, conclusion, log }`. `format=markdown` output is unchanged (no more redundant `#### logs` sub-heading per job).
+- **`MCP_JSON_FORMAT_VERSION`** bumped to **`"4"`** to mark this JSON shape change.
+
 ## [2.0.0] — 2026-07-03
 
 A token-cost pass across the tool surface: bounds worst-case payload size,

docs/mcp-tools.md

@@ -52,7 +52,7 @@ This default applies to `repo_status`, `pr_preflight`, `pin_drift`, and `ecosyst
 
 ## JSON responses
 
-Payloads are minified (`JSON.stringify`, no pretty-print). `MCP_JSON_FORMAT_VERSION` is **`"2"`**. Optional fields are omitted when empty/null.
+Payloads are minified (`JSON.stringify`, no pretty-print). `MCP_JSON_FORMAT_VERSION` is **`"4"`**. Optional fields are omitted when empty/null.
 
 ### Error envelope
 
@@ -284,7 +284,7 @@ PR associations are extracted from commit message `(#123)` patterns, then resolv
   "failedJobs": [{
     "name": "build",
     "conclusion": "failure",
-    "failedSteps": [{ "name": "logs", "log": "... [last 150 lines] ..." }]
+    "log": "... [last 150 lines] ..."
   }]
 }
 ```
@@ -416,8 +416,7 @@ The `attention` array is sorted by urgency: failing CI repos first, then by stal
     }
   ],
   "commits": [{
-    "owner": "Rethunk-Tech",
-    "repo": "bastion-satcom",
+    "repo": "Rethunk-Tech/bastion-satcom",
     "sha7": "abc1234",
     "message": "Fix SATCOM reconnect",
     "author": "alice",
@@ -434,6 +433,8 @@ The `attention` array is sorted by urgency: failing CI repos first, then by stal
 
 Commits are merged across repos and sorted newest-first. Per-repo errors do not fail the batch.
 
+Each commit row's `repo` field is `"owner/name"` (not separate `owner`/`repo` keys as in `repos[]`) — the row identifies its repo once, not twice, since this array can hold up to `64 × 200` entries.
+
 ---
 
 ### `module_pin_hint`

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@rethunk/github-mcp",
-  "version": "2.0.0",
+  "version": "3.0.0",
   "description": "MCP stdio server: high-value GitHub rollup tools for LLMs — multi-repo dashboards, PR preflight, CI diagnosis, and more.",
   "type": "module",
   "private": false,