kandev/docs/plans/kanban-completion-tool-reliability/task-01-task-only-eager-tool.md

id, title, status, wave, depends_on, plan, spec

id	title	status	wave	depends_on	plan	spec
01-task-only-eager-tool	Keep the task completion tool discoverable	done	1		plan.md	../../specs/workflow/explicit-completion-signal/spec.md

Task 01: Keep the task completion tool discoverable

Acceptance

• ModeTask lists step_complete_kandev without client-specific eager-load metadata.
• ModeOffice, ModeConfig, and ModeExternal do not register or advertise the tool.
• Tool arguments, handler behavior, and workflow transition semantics remain unchanged.

Verification

cd apps/backend && rtk go test ./internal/mcp/server -run 'Test.*(StepComplete|ModeOffice|ModeTask)' -count=1

Files Likely Touched

• apps/backend/internal/mcp/server/server.go
• apps/backend/internal/mcp/server/server_test.go

Inputs

• Spec mode-boundary table and MCP metadata contract.
• registerStepCompleteTool is called only from the default ModeTask branch.

Output Contract

Report the red test, minimal metadata change, serialized tool evidence, files changed, commands/results, risks, and task status. Use TDD and do not edit plan.md.

Implementation Evidence

• RED: rtk go test ./internal/mcp/server -run TestServerStepCompleteTool_TaskOnlyAndDiscoverable -count=1 failed because the serialized task-mode tool still contained _meta.anthropic/alwaysLoad.
• GREEN: the same focused test passed after removing the client-specific eager-load metadata (4 test cases including restricted-mode subtests).
• Prompt coverage requires signal-gated Kanban context to direct agents to normal tool search/discovery when the canonical tool is not already visible.
• Packet verification: rtk go test ./internal/mcp/server -run 'Test.*(StepComplete|ModeOffice|ModeTask)' -count=1 passed (10 tests).
• Package verification: rtk go test ./internal/mcp/server -count=1 passed (126 tests).
• The packet verification emitted a non-fatal fnm_multishells read-only filesystem warning from shell initialization; the Go test command itself completed successfully.
• No tool arguments, handler logic, or registration branch changed. Office, config, and external modes remain without step_complete_kandev; task-mode clients discover it through their normal catalog/search mechanism.