[FIX] Rectify: Capability Admission Control at Recipe Load — Refuse DOA Pipelines#4094
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Trecek merged 11 commits intoJun 12, 2026
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…ALLABLES Move BACKEND_CAPABILITY_INGREDIENTS to core/types/_type_constants.py (IL-0) so it is importable by the recipe layer (IL-2) without violating the IL-006 contract that forbids recipe → config imports. Add the new CAPABILITY_GATE_CALLABLES frozenset alongside it. Update config/ to re-export from core, preserving backward compatibility. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add _compute_capability_feasibility() that inspects the post-prune step graph for DOA patterns from capability-gated run_python steps. A step is a capability gate when its with_args["callable"] final component matches CAPABILITY_GATE_CALLABLES and the capability ingredient it reads resolves to a falsy value with no recovery route. The result flows into the LoadRecipeResult/OpenKitchenResult dicts as dispatch_feasible (bool) and infeasible_steps (list[str]) and is also registered in the formatter suppression sets. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Refuse DOA pipelines before any tool is revealed:
- open_kitchen (both normal and deferred-recall): full gate disable +
ctx.disable_components({kitchen}) + dispatch_infeasible envelope
- get_recipe resource: lightweight JSON error envelope
- load_recipe tool: dispatch_infeasible flag + user_visible_message
After admission control, correctly-admitted pipelines never reach
gate_backend_write with backend_capable="false". The step remains as
defense-in-depth but should never fire for a correctly-admitted
pipeline.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- test_codex_implementation_dispatch_infeasible: codex + implementation recipe reports dispatch_feasible=False with gate_backend_write infeasible - test_claude_implementation_dispatch_feasible: claude-code backend reports dispatch_feasible=True - test_dispatch_feasible_defaults_true: recipes without capability gates default to feasible - E2E chain test verifies backend → load_and_validate → dispatch_feasible - AST-level tests guard all four content-serving surfaces and the load_and_validate call site - CAPABILITY_GATE_CALLABLES ↔ smoke_utils export sync test Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add server/test_capability_admission_e2e.py to recipe cascade entry - Update pyright suppression allowlist line number (276→279) in _api.py - Bump tools_kitchen.py line limit 1200→1250 for infeasible response helper - Update _type_constants symbol count 91→93 for new capability constants - Sync _LEGACY_JSON_WRITES line numbers after tools_kitchen.py insertion Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add three missing tests identified by the audit-impl pass: 1. test_capability_override_parity - asserts _backend_capability_overrides (IL-3 server) and _build_capability_overrides (IL-2 fleet) produce identical output for every capability state 2. test_open_kitchen_refuses_doa_codex_pipeline - exercises the open_kitchen dispatch-infeasible refusal path through _dispatch_infeasible_response 3. test_codex_capability_gate_recipes - parametrized contract test asserting every bundled recipe containing a gate_backend_write step yields dispatch_feasible=False when loaded with codex overrides Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The test loaded a recipe with capability gates but claimed to test recipes without them — rename and fix docstring to match reality. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
pathlib is stdlib since Python 3.4 — importorskip is a no-op guard. Also add gate.enable.assert_not_called() to verify gate stays disabled. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
File-level substring checks would pass even if the target function lacked the gate. Use AST walking scoped to get_recipe and load_recipe. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The field was missing from the list-field copy set, allowing cached results to share the same list object across callers. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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…behavior - test_codex_open_kitchen_returns_success: expect dispatch_infeasible (codex lacks git_metadata_writable, so gate_backend_write steps are infeasible) - test_open_kitchen_refuses_doa_codex_pipeline: set gate_infrastructure_ready=True to enter deferred-recall path without calling _open_kitchen_handler (which calls gate.enable()), matching the test's assert_not_called expectation - test_current_json_write_sites_match_allowlist: update shifted line numbers for tools_kitchen.py json.dumps sites (171→201, 190→220, 224→254, 950→997, 1010→1057) - test_no_src_module_exceeds_line_limit: bump tools_kitchen.py exemption from 1250 to 1275 for capability admission control dispatch_feasible gating Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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This was referenced Jun 30, 2026
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Summary
Codex-backend implementation pipelines repeatedly die at
gate_backend_write(step 12) after executing 11 irreversible side-effect steps (clone, claim, branch publish, implement). 84[FIX]commits over ~3 weeks have patched individual links in the capability injection chain without closing the architectural gap: there is no admission control that refuses a dead-on-arrival (DOA) pipeline at recipe load time. Thegate_backend_writestep is a mid-pipeline runtime firewall — by the time it fires, the damage (wasted time, orphaned branches, claimed issues) is done.The immunity approach: extend
load_and_validateto compute adispatch_feasiblesignal based on whether capability-gated steps that route to terminal failure are reachable in the post-prune step graph. All four content-serving surfaces (open_kitchennormal,open_kitchendeferred-recall,get_recipe,load_recipe) gate on this signal. The pipeline is refused before any tool is revealed.Requirements
REQ-SCHEMA-001:
RecipeStepmust support a purpose-critical annotation parsed from recipe YAML, plumbed throughrecipe/schema.py,_PARSE_STEP_HANDLED_FIELDS, and_parse_stepinrecipe/io.pyso the import-time handled-fields assertion passes.REQ-SCHEMA-002: All bundled implementation-family recipes (
implementation.yaml,remediation.yaml,implementation-groups.yaml) must declare their implement-family steps as purpose-critical; every other bundled-recipe step invoking agit_metadata_write-class skill (merge-prs.yamlimplement/retry_worktree,research-implement.yamlimplement_phase) must carry an explicit purpose-critical or degraded-ok classification — no unclassified git-write step may remain. User-authored recipes without annotations are fail-open (admitted vacuously); this default must be documented.REQ-SCHEMA-003:
LoadRecipeResultmust gaindispatch_feasible: boolandinfeasible_steps: list[str]fields, mirrored inOpenKitchenResult; structuralvalidsemantics must remain unchanged.REQ-ADMIT-001:
load_and_validatemust classify a recipe as infeasible when any purpose-critical step is pruned byskip_when_false, keyed onbackend_namerather than the presence of capability ingredient overrides.REQ-ADMIT-002: The infeasibility result must be machine-readable, naming the backend, the missing capability, and the pruned purpose-critical steps.
REQ-ADMIT-003: The infeasibility result must include the
ingredients_tablesoingredients_only=Truediscovery flows continue to function (the existing_recipe_validation_error_responsebuilder does not carry it — a new refusal response builder is required).REQ-ADMIT-004: The refusal's
user_visible_messagemust name the backend, the missing capability, and the pruned purpose-critical steps, and must include an actionable escape hatch (e.g., switch the backend to claude-code), following the_preflight.py:95-110hook-class precedent.REQ-SURF-001: Both
open_kitchenpaths (normal and deferred-recall) must fail closed on an infeasible recipe — calling bothgate.disable()anddisable_components(tags={"kitchen"}), returning a structured refusal envelope — before any side-effect tool is callable.REQ-SURF-002:
get_recipemust gate ondispatch_feasiblein addition to its existingvalidgate and refuse to serve an infeasible recipe's content.REQ-SURF-003:
load_recipemust fail closed on infeasibility instead of returning recipe content with only avalidation_failedflag.REQ-SURF-004: The dispatch-feasibility preflight consumed by
dispatch_food_truckmust refuse infeasible recipes before any issue claim or branch publication.REQ-SURF-005: The
gate_backend_writerecipe step must remain in place as defense-in-depth.REQ-TEST-001: An arch test must cross-reference
SKILL_CAPABILITY_REGISTRYto require that every bundled-recipe step invoking agit_metadata_write-class skill carries an explicit purpose-critical or degraded-ok classification.REQ-TEST-002: An integration test must assert that every recipe-content-serving surface refuses an infeasible recipe.
REQ-TEST-003: The tests currently pinning Codex+implementation admission (
test_backend_ingredient_injection.py,test_bundled_recipes_dispatch_ready.py,test_recipe_backend_composition_matrix.py) must assert the precise refusal instead.Closes #4090
Implementation Plan
Plan file:
/home/talon/projects/autoskillit-runs/remediation-20260612-092948-265956/.autoskillit/temp/rectify/rectify_capability_admission_control_2026-06-12_093500.md🤖 Generated with Claude Code via AutoSkillit
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