The meta-gem, and the way a Terret is composed. Bundles ship ordered config rows, profiles stack bundles, patches adjust rows by id, and Terret.boot hands the result to the Hames loader -- so which plugins run, in what order, with what config is a question YAML answers rather than Ruby. Ships ter...

The second interface (plan §9.1): an ACP v1 server so an editor can drive a Terret agent over JSON-RPC 2.0 on stdio. Newline-delimited framing, session/new spawns a durable agent, session/prompt pends the whole turn, session/update notifications projected from the session log. Consumes the same t...

ctx[:fs]: workspace-contained file ops (read/write/edit/stat/glob) behind an fs/authorize waterfall, with realpath-based containment that fails closed on traversal and symlink escapes. ctx[:subprocess] spawns and captures under the fiber scheduler with cooperative cancellation; ctx[:shell] keeps ...

A worked example of the Terret extension story: a third-party gem that ships one tool (`fortune`, one line from a vendored list) and declares itself a bundle in a line of gemspec metadata, so a profile can stack it by name. Stdlib-only beyond terret-core. The running example of docs/cookbook/addi...

Mounts Model Context Protocol servers (stdio and streamable HTTP, via the manceps client) as namespaced tool sources behind ctx.tools, with per-server approval policy, per-call timeouts, and live tool-list reconciliation.

ctx[:summarizer] backed by Morph's Compact API: extractive line-level compression (surviving lines byte-identical), wire mirrored from the deployed agora integration. Zero runtime dependencies beyond stdlib net/http.

The one v1 model adapter for Terret: OpenRouter is OpenAI-compatible, so a single streaming implementation reaches the whole model space behind the provider-neutral ctx.llm seam. SSE streaming with tool calling, usage accounting, and retry with jittered backoff.

ctx[:sandbox] backed by a long-lived container: one patch row swaps this plugin in and every argv the harness spawns — Bash, Grep, the PTY tools — starts running inside it, with no change to any tool. The workspace is bind-mounted at its own realpath, so host-side file ops and in-container proces...

Durable session persistence for Terret: the append-only session log stored one event per row in SQLite (WAL mode), behind the ctx[:session_store] seam, so sessions survive process restarts with byte-identical derived context.

Claude Code's tool names, verbatim wherever it has one: Read, Write, Edit, Glob, Grep, Bash, WebFetch, Task and TodoWrite, plus snake_case terminal_* and job_* for the seams it has no equivalent for — all registered on ctx[:tools] with honest mutating/approval/concurrency metadata. Every handler ...

The v1 interface: one connection per agent, durable session events out, five client frames in, exact replay-then-tail reconnect on the append-only log, bounded-queue backpressure, heartbeat, and bearer auth. Ships as a plugin because the primary interface being a plugin is the architecture's point.