Files
agentic-dev/.claude/hooks/prompt-context.sh
Danijel Martinek 4dce1df084 docs(coverage): ADR-020 + glossary entries + hook keyword group
Architecture record for the agent-first coverage initiative seeded by
the 2026-05-13 PRD. Captures the durable decisions:

- 4-layer architecture (L0 vitest, L1 diff, L2 aggregate, L3 mutation)
- Manifest-driven coverage band as single source of truth (vitest +
  assertFeatureConformance + pnpm coverage:diff all read from it)
- Cover-the-diff (changed lines), not cover-the-new-code
- Committed coverage/summary.json (no SaaS), trend via git log
- Mutation testing scoped to entities + use-cases, on-demand only
- Machine-first output format (JSON stdout, human stderr)

Glossary gets a new "Coverage" section with 7 entries (coverage band,
L0-L3 layers, diff coverage, mutation testing, mutation score,
coverage/summary.json), plus two relationship rows and a flagged
ambiguity for "coverage" qualifiers.

prompt-context.sh hook gets a 9th keyword group — when a prompt
mentions coverage / uncovered / lcov / mutation / stryker, the
relevant ADR + guide path are injected as additional context for
the turn.

This is the documentation layer of the coverage epic. Implementation
(manifest schema, vitest auto-derive, scripts, boot assertion,
mutation tooling) lands in subsequent stories.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-13 13:42:26 +02:00

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#!/usr/bin/env bash
# Tier 2 — injects relevant ADR + workflow pointers when the user's prompt
# mentions concepts covered by an ADR or a hard ordering rule.
# stdout is appended to the agent's context for this turn.
set -euo pipefail
input=$(cat)
prompt=$(printf '%s' "$input" | jq -r '.prompt // ""' | tr '[:upper:]' '[:lower:]')
inject=()
if echo "$prompt" | grep -qE 'event|publish|consume|cross-feature|job queue'; then
inject+=('Events/jobs: ADR-015 + docs/guides/events-and-jobs.md. Rules E0 (events for cross-feature only), E1 (handlers private), J0 (jobs for deferred work).')
fi
if echo "$prompt" | grep -qE 'realtime|socket\.io|channel|broadcast|presence'; then
inject+=('Realtime: ADR-016 + docs/guides/realtime.md. Rules R0 (state delivery only), R1 (handlers private), R2 (socket.io in core-realtime only).')
fi
if echo "$prompt" | grep -qE 'audit|compliance|gdpr|dpa|erasure'; then
inject+=('Audit: ADR-018 + docs/guides/audit-and-compliance.md. Optional core; scaffold with pnpm turbo gen core-package audit.')
fi
if echo "$prompt" | grep -qE 'sentry|otel|opentelemetry|tracing|instrumentation|pii|scrub'; then
inject+=('Instrumentation: ADR-014 (interfaces) + ADR-017 (OTel migration). PII rules non-negotiable: sendDefaultPii=false, server-side scrub at OTel processor layer.')
fi
if echo "$prompt" | grep -qE 'use case|use-case|controller|repository|feature\.manifest|new feature|scaffold'; then
inject+=('Manifest-first ordering: (1) manifest → (2) contracts (xInputSchema, xOutputSchema, IXUseCase) → (3) tests (red) → (4) impl (green). Use pnpm turbo gen feature/event/job/realtime — never hand-roll.')
fi
if echo "$prompt" | grep -qE 'prd|epic|story|task|sandcastle|dispatch|orchestrat'; then
inject+=('Workflow: docs/architecture/agent-first-workflow-and-conformance.md + ADR-019. PRDs live in docs/work/prds/ — use the to-prd skill. Stress-test plans with grill-with-docs.')
fi
if echo "$prompt" | grep -qE 'di container|inject|bind-production|bind-dev-seed|symbols'; then
inject+=('DI: ADR-008 (per-feature containers). Binders take ctx from core-shared/di. Use .toDynamicValue() for factory bindings. Tests inject mocks directly — no container rebinding.')
fi
if echo "$prompt" | grep -qE 'boundary|boundaries|cross-package|cross feature'; then
inject+=('Boundaries: ADR-006 + ADR-010. Five tags (app|core|core-composition|feature|tooling). Features may only depend on core + tooling. Enforced by ESLint + Turborepo boundaries.')
fi
if echo "$prompt" | grep -qE 'coverage|uncovered|lcov|mutation|stryker|coverage band'; then
inject+=('Coverage: ADR-020 + docs/guides/coverage.md (cookbook). 4 layers — L0 vitest thresholds, L1 pnpm coverage:diff (cover-the-diff), L2 coverage/summary.json (committed trend), L3 pnpm mutate (Stryker on entities + use-cases). Manifest-driven: feature.manifest.ts coverage.bands is the single source of truth.')
fi
if [ ${#inject[@]} -gt 0 ]; then
echo "=== context-relevant pointers (from .claude/hooks/prompt-context.sh) ==="
printf -- '- %s\n' "${inject[@]}"
fi
exit 0