Multi-model retrospective review of #2856 (Phase 1 Expand removal)
flagged that TeamHandler.Collapse is unreachable from the canvas UI:
the "Collapse Team" button calls PATCH /workspaces/:id { collapsed }
(visual flag toggle on canvas_layouts), NOT POST /workspaces/:id/collapse.
The destructive POST route — which stops EC2s, marks children removed,
and deletes layouts — has zero UI callers (verified via grep across
canvas/, scripts/, and the MCP tool registry; only docs referenced it).
Two semantically different operations had been sharing the word
"Collapse":
- Visual collapse (canvas) → PATCH { collapsed: true }. Hides
children visually. Reversible. UI-only.
- Destructive collapse (POST /collapse) → Stops + marks removed.
Irreversible. No caller.
Deleting the destructive one + its supporting machinery:
- workspace-server/internal/handlers/team.go (entirely)
- workspace-server/internal/handlers/team_test.go (entirely)
- POST /collapse route + teamh init in router.go
- findTemplateDirByName helper (zero non-test callers after Expand
was deleted in #2856; package-private so no out-of-package consumers)
- NewTeamHandler constructor (no callers after route removed)
Plus stale doc references (the most dangerous was the MCP wrapper
mapping in mcp-server-setup.md — anyone generating MCP tool wrappers
from that table was wiring a 404):
- docs/agent-runtime/team-expansion.md (deleted entirely — whole
guide taught the deleted flow)
- docs/api-reference.md (dropped two team.go rows)
- docs/api-protocol/platform-api.md (dropped /expand + /collapse
rows)
- docs/architecture/molecule-technical-doc.md (dropped /expand +
/collapse rows)
- docs/guides/mcp-server-setup.md (dropped expand_team +
collapse_team MCP wrapper mappings)
- docs/glossary.md (dropped "(org template expand_team)"
parenthetical)
- docs/frontend/canvas.md (dropped broken link to deleted
team-expansion.md)
Kept: docs/architecture/backends.md mention of "TeamHandler.Expand
(#2367) bypassed routing on Start" — correct historical context for
the AST gate's existence, no live route reference.
Visual-collapse path unaffected:
canvas/src/components/ContextMenu.tsx:227 → api.patch — unchanged
canvas/src/components/WorkspaceNode.tsx:128 → api.patch — unchanged
go vet ./... clean. go test ./internal/handlers/ -count 1 — all green
(4.3s, no regression).
Net: -388/+10 = ~378 lines removed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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