Files
beaver-gateway/README.md

75 lines
3.6 KiB
Markdown

# beaver-gateway
A gateway for personal agents built on the Claude Agent SDK: conversations
with a lifecycle, windows to talk through, jobs, memory hooks, and a policy
boundary - without an opinion about what the agent is for. A setup is one
`config.py` (or a package next to it) that assembles a `Gateway`; this repo
holds the primitives, [beaver-agent](https://git.kotikot.com/beaver/beaver-agent)
is a full setup built on them.
![The admin: what is in motion, what waits for an answer, the context and the quotas, the graph around the master](preview/shots/admin-now.webp)
## What it gives a setup
- **agents/** - what an agent is: a Claude agent with a prompt per
conversation kind, skill sets per kind, gateway tools, a `PreToolUse`
policy; a Raycast agent for cheap fast answers.
- **backends/** - how a turn runs: the Claude Agent SDK subprocess with a
session pool, transcripts and session stores; the Raycast wire.
- **conversations/** - the model of a conversation: kinds (master, branch,
deep, job, fork), rows and windows, the inject queue with priorities,
seeds, turns, questions, closing through a distiller, master rotation,
the envelope, the in-process gateway tools.
- **jobs/** - cron, webhook and event jobs on pgqueuer, deferred injects,
the subscription budget.
- **frontends/** - the windows: Telegram (master = General, topic = branch,
files out of the agent through `send_file`),
markdown files in a vault, `/api` + the admin SPA, an Anthropic-compatible
`/anthropic/v1/messages`, MCP re-exposure at `/mcp/<name>`, and
`WebhookFrontend` for a window a setup declares itself - its own request
and response schema, its own agent, its own token scope
(`docs/FRONTEND-PLUGINS.md`).
- **mcp/** - MCP servers a setup declares (stdio, http, python tools),
aggregated in-process and handed to agents by name.
- **vault/** - watching a directory of notes for the envelope.
- **security/** - bearer tokens, the audit log, credential redaction.
- **events/** - the in-process bus every frontend taps, and the stream
event protocol backends emit.
- **storage/** - SQLModel tables and the Postgres session store.
`config.py` defines `Gateway` and loads a setup; `app.py` builds the runtime
from it; `cli.py` is the entrypoint. The admin SPA in `ui/` is the browser
window on all of it: conversations by day, the thread with the tree of tool
calls, the context of the last turn, memory, jobs, usage, tokens and the audit.
![A conversation in the admin: the thread, the queue, the details](preview/shots/admin-thread.webp)
![The Context tab: what the model held on the last turn - harness, prompt granules, skills, the notes the thread reached](preview/shots/admin-context.webp) Every string the gateway puts in front of
a model or a user has an English default and is overridable
(`ConversationTexts`, `TelegramTexts`).
## Run
```sh
cd examples
CLAUDE_CODE_OAUTH_TOKEN=$(claude setup-token) docker compose up --build
```
`examples/config.py` is the smallest setup that starts: one agent, one
python tool, one cron job, the built-in frontends on port 8000; the compose
file next to it adds Postgres. Without Docker: `uv sync`, build the SPA with
`cd ui && bun install && bun run build`, then run `uv run beaver-gateway` with
`DATABASE_URL` and `CONFIG_PATH` set. A setup's own secrets come from `.env`
next to its config (`load_dotenv` runs before the config is executed).
## Develop
```sh
make check # ruff format --check, ruff check, ty, pytest
make fix
```
No comments in code: modules carry a one-line docstring saying what they are
for, public configuration fields carry a one-line docstring saying what they
mean; everything else is the code.