passdown v0.4.0

Added

• passdown-pickup skill: reads the latest handoff log and plan state,
  verifies them against the working tree, and briefs the next session —
  closing the shift-handover loop.
• Machine-readable YAML frontmatter (status, branch, agent, plan) at
  the top of every handoff log, plus a defined agent-identity convention.
• scripts/doctor.sh: reports install-channel hygiene per host — dual
  plugin/direct installs and direct installs that drifted from the checkout —
  with a regression suite wired into CI.

Changed

• passdown-dispatch now materializes routing decisions as [dispatch: ...]
  tags in the plan file and records a Dispatched: outcome line under each
  task executed off the main session.

Fixed

• Restore the 0.1.0 changelog entries and version link references dropped by
  the v0.3.0 release commit.
• The documentation contract tests now require a link reference for every
  CHANGELOG version heading, and check-version.sh requires a CHANGELOG
  section for the current version.

passdown v0.3.0

Added

• Standalone markdown planning template with Passdown dispatch tags, done
  criteria, and verification fields.
• Optional --skills-only direct-install mode for users who do not use
  OpenSpec.
• Integration guidance for standalone Passdown, OpenSpec, Superpowers, and the
  combined workflow.

Changed

• Made passdown-dispatch an explicit pre-execution gate for multi-task plans,
  including plans about to enter Superpowers executing-plans.
• Added a consumer workspace invariant requiring routing before implementation.
• Defined planning: markdown with a plan_dir key in passdown-intake, so
  standalone plans are created from the markdown template without OpenSpec.
• Documented the dispatch gate, optional integrations, standalone markdown
  planning, and --skills-only in the README and smoke-test checklist.

Fixed

• Prevent plan executors from bypassing Passdown routing merely because another
  plugin entered its own execution skill first.
• Reject combining --into with --host or --skills-only in any argument
  order instead of silently installing the schema and dropping the other flags.

passdown v0.2.0

Added

• First-class Codex host support with a native .codex-plugin manifest and
  repo marketplace.
• Installer, skill-contract, version, and release-workflow regression suites.
• A single VERSION source of truth with manifest/tag agreement checks.
• Tag-gated GitHub Release automation.
• Executor environment preflight and setup guidance.

Changed

• Made intake, dispatch, and handoff configuration inherit root-to-nearest
  AGENTS.md values with nearest-key precedence.
• Made dispatch host-aware: Codex is an external executor only from another
  host, while native subagents use the portable subagent name.
• Made executor results concise structured summaries, preserving verbatim
  environment errors rather than relaying all output.
• Made direct installs explicit per host and recursive for skill resources.
• Adopted short-lived branches, protected main, and PR-only integration.
• Expanded the public documentation, examples, smoke tests, and release gates.

Fixed

• Preserve pre-existing working-tree changes when an executor fails; cleanup is
  limited to changes attributable to that dispatch.
• Stop cross-repo intake when permissions are insufficient instead of
  attempting sandbox workarounds.
• Remove stale files during direct skill synchronization.
• Reject unknown installer arguments and make --help side-effect free.
• Avoid handoff log collisions with agent/time filename suffixes.
• Keep optional OpenSpec design artifacts from blocking task generation.

passdown v0.1.0 — initial dogfooding release

Initial snapshot of the three passdown skills, installer, and OpenSpec schema. Later public-readiness changes remained on main and are released in v0.2.0.