Writing
Claude Code
Treeship and Claude Code, by Anthropic.
Treeship 0.27: the custody handshake
Foreign work handed over A2A or MCP is refused until the other agent proves live key control, and the handoff receipt records that it did.
Treeship 0.14: capability cards and the agent resolver
Agents get per-agent keys, signed capability cards, and a hub-backed resolver with a transparency log that your own machine re-verifies.
Treeship Agent Skills: One Skill, Every Agent
Install Treeship on Kimi Code CLI, Claude Code, Codex, Cursor, OpenClaw, and Hermes. One skill file teaches every agent how to create cryptographically signed trust receipts.
Treeship 0.10.1: agent-native sharing and a supply-chain floor
An agent in a fresh sandbox can install Treeship, run a session, and return three working URLs. 0.10.1 hardens the binary, keystore, SDK, and MCP server underneath.
Treeship 0.9: the official Claude Code plugin
Two commands install a plugin whose hooks record every Claude Code session into a sealed receipt. TREESHIP.md tells the agent exactly what is captured.
Treeship 0.8: zero to receipt in under 90 seconds
treeship add instruments the agent frameworks already on your machine, quickstart walks to a first receipt, and agents get an identity certificate.