v0.5.0

Summary

Major catalog expansion from 17 to 102 rules. Agent-specific rules migrated to
their own namespaces (CLAUDE:, CODEX:, COPILOT:), new context_quality
category added, and all OpenGrep references removed in favor of native regex
pattern matching.

438 files changed — 8,938 insertions, 2,499 deletions.

Highlights

Rule catalog: 17 → 102

Category	Count
Structure	36
Content	32
Context Quality (new)	7
Efficiency	5
Governance	9
Maintenance	1
Agent — Claude	8
Agent — Codex	2
Agent — Copilot	2

Agent namespace migration

Agent-specific rules now live under their own coordinate namespaces instead of
being mixed into CORE:. Hook and skill rules migrated from core to
CLAUDE:S:, CODEX:S:, and COPILOT:S:.

New category: Context Quality (X)

Rules that evaluate whether instruction files provide sufficient project
context for effective agent work — architecture overviews, tech stack
declarations, directory layouts, path scoping, and priority ordering.

OpenGrep removal

All references to OpenGrep/Semgrep replaced with native regex pattern
matching. docs/opengrep-guide.md → docs/pattern-guide.md. Backbone key
rules.patterns.opengrep → rules.patterns.patterns_yml.

Schema changes

• Added context_quality category (letter X) to coordinate patterns and
  category enums
• Normalized agent override severity enum syntax; added critical value
• Added pattern validation to agent config excludes items
• Added internal source type to sources schema
• Sources schema version corrected from stale 1.0.0 to 0.1.0
• Rule schema bumped to 0.1.1
• Check ID format canonicalized to NAMESPACE.CATEGORY.SLOT.descriptive-name

Other changes

• Generic agent — new agents/generic/config.yml for running core rules
  without agent-specific config
• Bootstrap skill — redesigned to synthesize project context (navigation,
  operations, constraints) instead of counting files
• Test harness — added /test-rules skill for docker compose local
  harness
• Pre-commit hook — enforces UNRELEASED.md is staged when touching core/,
  agents/, schemas/, registry/, or docs/
• CI — test harness disabled in CI/release workflows pending
  reporails-cli 0.5.0 compatibility

Removed rules

Deprecated and removed from 0.4.x:

• Core: avoid-generic-placeholder-content, boundary-constraints,
  include-project-context, project-architecture-documentation,
  verification-build-commands, cross-agent-compatibility,
  valid-glob-patterns-in-frontmatter, valid-internal-references,
  monorepo-nested-instruction-files, root-instruction-file-presence,
  structured-markdown-format
• Agent: CLAUDE import-syntax, path-scoped-rules, rules-directory; CODEX
  combined-instruction-size-limit; COPILOT copilot-instructions-placement,
  copilot-path-specific-instructions

Upgrade notes

• Coordinate map fully rebuilt — any tooling referencing 0.4.x coordinates
  must update
• Agent configs now use arrays for main_instruction_file
• Check IDs use new canonical format
  (NAMESPACE.CATEGORY.SLOT.descriptive-name)

Full Changelog: 0.4.1...0.5.0