v1.7.0

Minor Changes

• 2a97c04 feat: artifact integrity + rules generator managed-block markers

Managed-block markers for rules generate (fixes AGENTS.md clobber bug)

planr rules generate --scope pipeline no longer overwrites the entire AGENTS.md / CLAUDE.md. Generated content is now wrapped in <!-- ##planr-pipeline:begin## --> / <!-- ##planr-pipeline:end## --> HTML comment markers. On regeneration, only the content between markers is replaced — project headers, agile content, and hand-written sections are preserved. Same treatment for --scope agile via <!-- ##planr-agile:begin## --> markers.

Write-time artifact validation

updateArtifact() now validates structural invariants before writing: frontmatter fences present, YAML parses, id: field unchanged, and checkbox IDs preserved. On violation, throws ArtifactInvariantError with the specific violation. This stops AI-driven corruption from planr refine / planr revise at the door — the file on disk is never poisoned by malformed AI output.

AI contract: structured deltas for planr refine

planr refine now asks the AI for structured deltas (frontmatterChanges + bodyChanges) instead of a whole-file improvedMarkdown blob. Our code applies deltas deterministically — the AI never holds a pen on raw bytes. Legacy improvedMarkdown responses are validated and rejected if they break structural invariants.

Migration

• First run of planr rules generate on an existing project wraps content in markers automatically (non-destructive).
• planr refine change is transparent to users (AI contract is an implementation detail).
• Files previously corrupted by refine must be manually repaired or restored via git checkout.