[docs] Consolidate developer docs v6.7: document OTLP agent output metrics

[github-actions]

Developer Documentation Consolidation — v6.7

Daily consolidation run for 2026-04-21. Analyzed 64 markdown files in scratchpad/.

Changes Made

• 0 tone issues found across all spec files
• 1 documentation gap identified and fixed: OTLP agent output metrics from PR Emit agent output metrics on OTLP conclusion spans for all outcomes #27495 were not documented

New section added: ### Agent Output Metrics (OTLP Conclusion Spans) in scratchpad/dev.md

PR #27495 changed send_otlp_span.cjs to read agent_output.json unconditionally so metrics are emitted on all job outcomes (not just success). New OTLP span attributes documented:

• gh-aw.error.count, gh-aw.error.messages — agent error tracking
• gh-aw.output.item_count, gh-aw.output.item_types — safe output item tracking
• Plus existing token/model/engine/conclusion attributes now explicitly listed

Files Modified

• Updated: scratchpad/dev.md (v6.6 → v6.7, +26/-2 lines)

Validation

✅ Markdown valid
✅ Technical tone consistent
✅ Version and history entry updated
✅ No tone issues in any spec file

Review Notes

Please verify:

1. The new OTLP attribute table matches the current send_otlp_span.cjs implementation
2. The base span attributes list is complete
3. The PR Emit agent output metrics on OTLP conclusion spans for all outcomes #27495 reference is accurate

Generated by Developer Documentation Consolidator · ● 599.1K · ◷

• expires on Apr 23, 2026, 11:24 AM UTC

[github-actions]

Great work from the Developer Documentation Consolidator workflow! 🤖 This is a clean, focused documentation update that fills in the gap left by PR #27495 — the new OTLP agent output metrics (gh-aw.error.count, gh-aw.error.messages, gh-aw.output.item_count, gh-aw.output.item_types) are now properly documented in scratchpad/dev.md along with the full base span attribute list and an implementation pointer to sendConclusionSpan().

This PR looks ready for maintainer review. ✅

---

Contribution check: 🟢 Aligned · 1 file · 28 lines · documentation-only

Generated by Contribution Check · ● 1.4M · ◷