Claude Obsidian v2.0.0 — Reliability and Evidence Refoundation

Claude Obsidian v2.0.0 — Reliability and Evidence Refoundation

Claude Obsidian 2.0 rebuilds the product around recoverable operations,
source-grounded knowledge, and a clean separation between product code and
user-owned vaults.

Highlights

• Added the host-neutral claude_obsidian standard-library core.
• Added inspected, recoverable transactions with crash recovery and explicit
  Git checkpoints.
• Added source and claim provenance ledgers, deterministic linting, capability
  contracts, and package validation.
• Added dry-run-first vault initialization, adoption, migration, capture, and
  extension setup.
• Added a reproducible public-artifact builder with privacy, secret, path,
  archive, and symlink defenses.
• Normalized all 15 skills around one portable operation contract.
• Hardened retrieval, including bounded CJK tokenization and deterministic BM25
  fallback behavior.
• Replaced automatic shared writes and lifecycle commits with explicit,
  reviewed operations.
• Removed contributor-vault state, duplicate command mirrors, stale templates,
  and unsupported claims from the public distribution.

Compatibility

Existing vaults remain readable. Migration is additive and idempotent, and
legacy raw-source metadata is preserved.

Verification

• Full hermetic suite and executable contracts: passed on Ubuntu and macOS,
  Python 3.11–3.14
• Focused release tests: 39/39 passed
• Package validation: 15 skills, zero findings
• Secret review: 208 raw scanner detections classified as deterministic hashes,
  examples, or negative security fixtures; zero unresolved secrets and zero
  open GitHub secret-scanning alerts
• Audited public artifact: zero symlinks; SHA-256
  cafecd7090d8460b1485ec7ffc9fc3653b81a3805f59cdd6283face2d3430aeb

See CHANGELOG.md
for the complete change history and
README.md for
installation and usage.