plat 022

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PLAT-022 — get_api_spec is absent from a workflow-phase session

Coordination	Value
Assigned agent	Claude Code
Ticket state	assigned
Execution order	A — first
Last synchronized	2026-08-04

Claim this ticket as in_progress before implementation. Update this fragment during active work; synchronize the shared index at handoff.

• Priority: P1
• Owner: workflow-phase custom-tool registration and mcpagent registration materialization
• Evidence: three occurrences of custom tool get_api_spec is not registered for session msgseq-iteration-0-job-search-…-step-4.
• Source: what_the_runtime_tells_an_agent_about_itself.md
• Problem: this is not the existing category/allow-list defect. The tool is absent from the session registry, so discovery cannot succeed regardless of which category or request shape the agent uses.
• Implementation boundary: trace workflow-phase tool construction through final registration and identify why this specific message-sequence step loses get_api_spec. Do not weaken registration or authorization globally.
• Status (2026-08-04) — not closed, correctly flagged by Codex review: the log evidence for the specific msgseq-iteration-0-job-search-…-step-4 session was rotated away by a server restart before it could be traced to a registration call site. Investigation instead found and fixed a same-shape defect: workflow-tools.md's opening get_api_spec instruction was unscoped to code-execution mode, so a native-provider workshop-mode session reading it would hit the identical error (workflow-tools_get_api_spec_scope_test.go, commit 676c525d0). That is real but adjacent — it does not reproduce or repair the original message-sequence registration path, and no workflow-phase fixture or real job-search run has confirmed the marker is gone. Ticket state intentionally left as assigned, not advanced to implemented.
• Acceptance: a workflow-phase/message-sequence fixture registers get_api_spec, can retrieve the spec for an allowed tool, and still denies a genuinely ungranted tool. A real job-search step no longer emits the not-registered marker.