* docs: clarify capture_thought is an optional convention (#1873)
Issue #1873 merged /gsd:extract-learnings with an optional
capture_thought hook, but the docs never explained what the tool is
or where it comes from — readers couldn't tell whether it was a
bundled GSD tool, a required dependency, or something they had to
install. This surfaced in a user question on that issue's thread.
Clarify in docs/FEATURES.md §112 and the workflow file that
capture_thought is a convention — any MCP server exposing a tool
with that name will be used; if none is present, LEARNINGS.md
remains the primary output and the step is a silent no-op.
No behavioral change. All 23 extract-learnings tests still pass.
* fix(security): add human to detection message; test [/INST] closing form neutralization
- Detection message now lists <human> alongside <system>/<assistant>/<user>
- Sanitizer regex extended to cover [/INST] closing form (was only [INST])
- Detection pattern extended to cover [/INST] closing form
- New sanitizeForPrompt test asserts [/INST] is neutralized
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(config): add workflow.security_* keys to VALID_CONFIG_KEYS
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* docs: add language tag to fenced code block in FEATURES.md
Fixes MD040 lint finding in PR #2379 — the capture_thought tool
signature example was missing a javascript language identifier.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Add /gsd:extract-learnings command and backing workflow that extracts
decisions, lessons, patterns, and surprises from completed phase artifacts
into a structured LEARNINGS.md file with YAML frontmatter metadata.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>