[Circuit-Overtime]

Adds Crumb, an MIT-licensed terminal coding agent written in Rust. It has its own tools, sessions and approval policy, and uses Pollinations models by default. Crumb is also packaged in Debian. I maintain it.

• ACP: crumb acp speaks ACP v1 over stdio. It streams agent and thought chunks, sends tool calls and their updates (with output), and routes approvals through session/request_permission. session/cancel stops a turn, and session/resume, session/list and session/close are supported.
• Authentication: a terminal method, crumb auth login, offered when the client declares auth.terminal or _meta["terminal-auth"]. It exits 0 once the account is connected.
• Distribution: the GitHub Release archives for darwin-aarch64, darwin-x86_64, linux-aarch64, linux-x86_64 and windows-x86_64, each pinned by SHA-256 from the release's .sha256 assets. Each archive also ships a Sigstore bundle and a build-provenance attestation.
• Icon: 16×16 and monochrome (currentColor), made from Crumb's pixel-art panda mascot.

Checked locally: agent.json validates against agent.schema.json, and every checksum matches the archive it pins.