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Changelog

All notable changes to this project are documented here. The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

[0.3.0] - 2026-06-09

The keyring + meta-chain release.

Added

  • Multi-signer keyring. A registry of additional public keys (~/.agent-capsule/known_keys.json, fingerprint -> public-key hex) for chains this machine can verify but did not sign: imported chains, rotated keys, peers. The export bundles the whole keyring (keys map in index.json) plus each chain's signed_by, so the Explorer verifies every signer offline, not just the local key. New module agent_capsule.core.keyring.
  • Meta-chain in the export. export now writes meta.json (the chain-of-conversations) and a meta summary in index.json, so the Explorer can confirm the whole corpus is complete (delete or truncate any conversation and its recorded seal no longer matches).
  • Per-chain recency dates. Each chain summary carries started_at / ended_at; chains export newest-first.
  • scripts/import_qp_chains.py. Import legacy qp_capsule chains byte-for-byte (every hash re-verified, data -> canonical rename), register the legacy signing key in the keyring, and rebuild the meta-chain.

Tests

  • Added test_keyring, test_export (keyring, dates, signer, meta-chain), and test_import_qp (round-trip hash/link preservation, idempotency, tamper detection). A conftest.ac_home fixture isolates all storage paths.

0.2.0 - 2026-05-31

The multi-tool release. Renamed from claude-capsule to agent-capsule.

Added

  • Adapters for Cursor (stop hook plus globalStorage enrichment), Codex (per-turn notify program), and Cline (TaskComplete / TaskCancel / TaskStart hooks), alongside the existing Claude Code adapter.
  • A unified agent-capsule CLI: verify, inspect, list, install, uninstall, and export, with chains grouped by tool.
  • Per-tool, per-session chains at ~/.agent-capsule/chains/<tool>/<session>.db, so tools never collide on a session id.

Changed

  • Extracted the shared crypto into one core engine (agent_capsule.core), with one thin adapter per tool (agent_capsule.adapters). Every tool now produces the same kind of chain.
  • Moved the in-browser verifier into its own repository, capsule-explorer.
  • Back-compat aliases keep the original claude-capsule entry points working.

0.1.0

Initial release as claude-capsule. Sealed Claude Code sessions into a SHA3-256 plus Ed25519 hashchain via the Stop and SessionEnd hooks, with CLI verification.