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Use when creating, reviewing, or updating SPEC.md files or entering the ADF SPEC gate.
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Basierend auf der SOC-Berufsklassifikation
Use when the user says they are stepping away and the agent should continue without interactive approvals
Use when running e2e tests, debugging test failures, or fixing flaky tests. Covers failure taxonomy, fix rules, and workflow. Never changes source code logic or API without spec backing.
Use when auditing how well the shared agent instructions (AGENTS.md, skills) hold up in real sessions — sampling transcripts via recall, scoring them against the gap rubric, and turning findings into ratified amendments
Use when preparing clean, logical git commits from an existing working tree
Use when syncing a feature branch onto the latest origin base branch via git rebase.
Fetch latest from origin, prune remote-tracking refs, delete stale local branches and worktrees, and fast-forward important branches. Use when tidying up a worktree-based repo layout.
| name | spec-best-practices |
| description | Use when creating, reviewing, or updating SPEC.md files or entering the ADF SPEC gate. |
Always SPEC.md. No exceptions for the primary spec file. Not feature.spec.md, not SPEC-feature.md.
Supporting documents linked from a SPEC.md TOC may use descriptive names (e.g., commands.spec.md), but only when a root SPEC.md exists and links to them.
Specs are colocated with the code they describe: root SPEC.md for project scope, apps/foo/SPEC.md for app scope, packages/bar/SPEC.md for package scope.
spec/, docs/specs/, and docs/plans/ directories. Prefer colocated SPEC.md files.SPEC.md and delete the plan doc../commands.spec.md, etc.). Supporting files live alongside the SPEC.md, not in a subdirectory.Specs are freeform markdown. No rigid template, no YAML frontmatter, no required section ordering. These elements must be present:
Problem and solution -- narrative context for why this system/feature exists. Lead with the problem.
Domain model -- types, relationships, data flow. For retroactive specs, derive from inspected code.
Requirements with REQ-* IDs -- every behavioral requirement gets a stable identifier. Format: REQ-{DOMAIN}-{NNN} (e.g., REQ-AUTH-001). Append-only; never renumber. Each requirement is testable and traceable.
Invariants -- conditions that must always hold.
Non-goals -- explicit scope boundary. What this spec intentionally does not cover.
Decisions (conditional) -- ratified calls and tradeoff policy for this surface. Grows as boundary batches are answered and provisional entries are ratified; entries marked ratified|provisional. Gives answered questions a durable home so they are never re-asked.
Acceptance criteria -- markdown checklist, not prose:
- [ ] Auth endpoint returns JWT with tier claim
- [ ] Rate limiter rejects >100 req/min per IP
Risk tags (conditional) -- flag high-risk items (schema migrations, auth changes, public API contracts, infra changes) when those risks exist or the ADF PLAN gate requires approval.
Test traceability (conditional) -- REQ-* to test file:line mapping. Added during/after TDD, not at initial authoring.
Evidence-based: read code before writing spec content. Do not invent behavior, signatures, or file paths. For retroactive specs, derive requirements from the actual implementation.
Calibrate claim strength to enforcement: match absolutist words ("unrepresentable", "cannot", "structurally caught", "any regression trips the check") to what the check actually proves. If a reviewer can construct a counterexample in under 60 seconds (comment decoy, string literal, shadowed binding, computed path), the SPEC is overclaiming. Either tighten the check, narrow the claim (e.g., "closes the literal-spawn regression; comment/string/shadow-binding cases are covered by the companion test"), or record the gap as an open item. Conservative phrasing backed by evidence beats strong phrasing that invites reject cycles.
Retroactive specs are first-class: documenting existing behavior is valid and encouraged. Read the implementation, extract requirements from actual behavior, note inconsistencies as open items (not silent omissions), map traceability to existing tests.
External-API integrations: before locking requirements for an integration with an external provider, run a recall sweep for prior findings on that provider/API and fetch the provider's current docs — do not spec against remembered API shapes; deprecations and legacy endpoints invalidate them. Treat unexplained existing config (keys, scopes, endpoints) as an investigation trigger, not dead code.
Mutation policy: the spec is the human+agent contract — do not reshape it without direction, and a component the spec does not name is a scope change, not an implementation detail. A reversible interior call that refines spec territory may land as a dated provisional Decisions entry, ratified at the boundary. When spec/implementation drift is found, surface it immediately — the user decides whether to update spec or code.
Spec vs. plan: specs describe what and why; plans describe how and when. Plans are ephemeral. Absorb durable decisions into the spec; delete the plan doc.
Creation (SPEC gate): the gate passes when the colocated SPEC.md carries REQ-* IDs, invariants, non-goals, and acceptance criteria — plus risk tags whenever high-risk items exist. Determine placement, read the existing file and identify gaps (or create at the correct colocated path), and ensure every required element is present before PLAN begins.
Maintenance: update spec when behavior changes; append new REQ-* IDs, never renumber; add test traceability as tests are written; cross-check spec against implementation whenever both are in context and surface drift.
Retirement: when a feature is removed, remove or archive its SPEC.md. Do not leave stale specs describing deleted behavior.