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@insitue/agent-core

v0.3.1

Published

The InSitue edit-engine seam: provider-agnostic agent loop, proposal parsing, changeset/diff, atomic sandboxed file mutation, git checkpoint/commit, source resolution. Pure of transport/UI — reused by @insitue/companion (local) and the cloud autopilot.

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Links

Maintainers

rodlevitonrodleviton

Keywords

Readme

@insitue/agent-core

The orchestration + edit engine shared by the InSitue companion (local dev loop) and the cloud autopilot (production). Pure of HTTP and DOM; the host (companion / cloud) wires transports + storage.

What's inside

| Subtree | Purpose | |---|---| | agent/orchestrator.ts | Turn lifecycle — pick → propose → approve → write → undo, with checkpointing | | agent/claude-code/transport-*.ts | Three pluggable Claude transports: cli-headless (default), mcp, sdk | | agent/claude-code/normalize.ts | Single parity core that converts every transport's stream into our AgentEvent protocol | | agent/claude-code/mcp-server.ts | Standalone stdio MCP that exposes the insitue_context tool to a spawned Claude | | agent/proposals.ts | Validates + reduces a model's proposed edits into a sandboxed changeset | | edit/gateway.ts | Single chokepoint for filesystem writes — realpath-sandboxed to the project root, never escapes | | edit/mutator.ts | Atomic apply (write all-or-nothing), with byte-exact git-checkpoint preservation for undo | | edit/git.ts | Per-turn git checkpoints (.insitue/checkpoints/<ref>/) — restore on undo, surgical commit on session close |

Install

pnpm add @insitue/agent-core

Depends on @insitue/capture-core (the shared protocol), @modelcontextprotocol/sdk, diff, and execa. Claude Agent SDK is an optional peer — host installs it only when wiring the sdk transport.

Safety boundaries

  • Edit gateway never escapes the project root. Every write path is realpath'd and rejected if it falls outside the configured root. This is the moral equivalent of a chroot for agent edits — the model can't write to /etc/passwd even with a hostile prompt.
  • Atomic apply. A multi-file changeset writes all-or-nothing, with prior-state checkpoints so undo restores byte-exact.
  • No HTTP. No DOM. This package never reaches the network or the browser; transports do that, and they're swappable.

Stability

Internal to the InSitue ecosystem. Consumed by @insitue/companion (dev) and the cloud agent (prod) — both shipped from this monorepo in lockstep with capture-core. Not intended for direct user import.

License

MIT. © InSitue.