* fix(#973): add Edit to gsd-planner tools and forbid whole-file Write of ROADMAP.md
gsd-planner shipped Write but not Edit — the same writer-agent gap fixed for six
agents in #571/#581. Without Edit, an in-place ROADMAP update fell back to a
whole-file Write that truncated committed milestone history (292→16 lines in a
real incident).
Changes:
- agents/gsd-planner.md: add Edit to tools: frontmatter (adjacent to Write)
- agents/gsd-planner.md: update_roadmap step now directs Edit (scoped), with an
explicit blocking prohibition on whole-file Write of ROADMAP.md or any existing
curated .planning/ file
- agents/gsd-planner.md: Write contract section clarifies Write is authorized only
for net-new PLAN.md creation; existing files must use Edit
- tests/agent-frontmatter.test.cjs: extend SECTION_WRITER_AGENTS list (#581 test)
to cover gsd-planner — fails before fix, passes after
- .changeset/973-gsd-planner-edit-tool.md: Fixed changeset, pr:0
Closes#973
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* chore(#973): backfill changeset pr number (989)
* fix(#973): trim gsd-planner.md prose under agent size cap (keep Edit + scoped-Edit-for-ROADMAP rule)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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