Implementation Plan: T5-P1-A1-WP1 — HookDef.mechanism Field#4064
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Trecek merged 1 commit intoJun 11, 2026
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… assertions Adds a new `mechanism` field to `HookDef` (Literal["deny", "additionalContext", "output-rewrite"], default "deny") so the B4 probe harness can assert expected hook outcomes without inspecting script source. Wires the field into `_canonical_registry_payload` to keep `HOOK_REGISTRY_HASH` honest. Populates `mechanism=` on all 33 `HOOK_REGISTRY` entries per classification: - 26 PreToolUse entries: deny - 5 PostToolUse output hooks: output-rewrite - 1 PostToolUse skill_load_post_hook: additionalContext - 1 SessionStart session_start_hook: additionalContext Adds 4 new test methods in `TestHookDefCodexStatus`: - test_hookdef_has_mechanism_field - test_all_registry_entries_have_valid_mechanism - test_pretooluse_deny_mechanism_is_set - test_posttooluse_pretty_output_is_output_rewrite
Trecek
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t5-p1-a1-wp1-give-the-b4-probe-harness-p1-a1-wp2-a-machine-r/3997
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Summary
Add a
mechanismfield toHookDef(Literal["deny", "additionalContext", "output-rewrite"], default"deny") so the B4 probe harness can assert expected hook outcomes without inspecting script source. Wire the field into_canonical_registry_payloadto keepHOOK_REGISTRY_HASHhonest. Populatemechanism=on all 33HOOK_REGISTRYentries and add four new test methods totest_hook_registry_codex_status.py.Closes #3997
Implementation Plan
Plan file:
/home/talon/projects/autoskillit-runs/impl-20260611-063254-779098/.autoskillit/temp/make-plan/t5_p1_a1_wp1_mechanism_field_plan_2026-06-11_064800.md🤖 Generated with Claude Code via AutoSkillit
Token Usage Summary
* Step used a non-Anthropic provider; caching behavior may differ.
Token Efficiency
Model Usage Breakdown