pi-toolchain: v0.8.0

Minor Changes

• 0aca4d0: Rewrite: tool_call-based command mutation, new config surface, removed bash integration

  Breaking config changes (migrations provided):

  • FeatureMode "rewrite" renamed to "mutate"
  • features.enforcePackageManager renamed to features.packageManager
  • features.rewritePython renamed to features.python
  • ui.showRewriteNotifications renamed to ui.showMutationNotifications
  • bash.sourceMode and BashSourceMode removed entirely
  • Config migrations automatically handle all renames and strip stale keys

  New features:

  • Command mutation via tool_call hook — event.input.command is mutated in place before shell execution, replacing the spawn-hook/bash-integration approach
  • All three behaviors (block, mutate, notify) handled by a single tool_call handler
  • Execution order: blockers first, then mutation, then notifications

  Removed:

  • bash-integration.ts and bash-composition.ts deleted
  • createBashTool / BashSpawnContext / spawn hook registration removed
  • override-bash and composed-bash source modes removed
  • Mutation notifications no longer have [override-bash]/[composed-bash] prefix

  Architecture:

  • src/ — pure functions, zero Pi runtime imports
  • extensions/toolchain/ — Pi extension entry point, hooks, settings UI
  • 40 tests covering config defaults, migrations, feature predicates, tool_call hook, and pure mutation engine