FabledScribe/plugin/README.md

# Scribe plugin for Claude Code

Turns a self-hosted [Scribe](https://git.fabledsword.com/bvandeusen/FabledScribe)
instance into a first-class Claude Code extension:

- **MCP tools** over your notes, tasks, projects, milestones, systems, and
  rulebook (the `scribe` server).
- **Session-start push channel** — a `SessionStart` hook injects the
  active project's live state (from the server) and this adapter's short
  Claude Code guidance, so Scribe surfaces *without being asked*. Rules are
  never preloaded; they arrive by retrieval when your work matches one.
- **Prior-art recall on writes** — a `PreToolUse` hook on Write/Edit checks the
  file about to be written against your recorded snippets (what's kept at that
  path, and what resembles the code) and offers them before the helper is
  rewritten. Titles only, never blocks the edit.
- **The shared Scribe skills** — client-neutral Agent Skills, the same files
  any client's package would ship: using-scribe, writing-plans, reporting-back
  (reply to the operator in a shape that says where the work stands),
  systematic-debugging, verification, brainstorming, reusing-code (record and
  recall reusable code as snippets). Replaces superpowers.
- **Your Scribe Processes as skills** — saved Processes are synced into local
  `~/.claude/skills/scribe-proc-*` stubs that auto-surface by relevance; the
  stub fetches the live procedure via `get_process`. Refreshed each session and
  on demand with `/scribe:sync`.

It is designed so you can uninstall `superpowers` and depend on Scribe instead
of auto-memory — leave auto-memory at its default; Scribe replaces its job by
holding the one copy, not by switching it off.

**How the pieces divide the work** (decision #4027): the Scribe server orients
every MCP client and serves live state; the skills in `skills/` state every
reflex in full and name no client; this plugin is the Claude Code adapter —
hooks that deliver at the right moment, `/scribe:sync`, and the few things only
Claude Code needs said (`hooks/scribe_static_context.md`). Packaging Scribe for
another client: see [PACKAGING.md](PACKAGING.md).

## Install

The plugin ships inside the Scribe app repo, so the marketplace *is* that repo —
you always get the plugin version that matches your Scribe instance.

```
/plugin marketplace add https://git.fabledsword.com/bvandeusen/FabledScribe.git
/plugin install scribe@scribe-plugin
```

On install you'll be asked for:

| Setting | What |
|---|---|
| **Scribe base URL** | e.g. `https://scribe.example.com` (no trailing slash) |
| **Scribe API key** | an `fmcp_` key from **Settings → API Keys** (stored in your OS keychain) |
| **Active project id** | optional — numeric project id to scope the session-start context |

## What gets wired

- `plugin.json` `mcpServers` → the `scribe` MCP server at `<base URL>/mcp` (Bearer auth).
- `hooks/hooks.json` → SessionStart hook (`hooks/scribe_session_context.sh`),
  **fail-open**: if Scribe is unreachable it injects nothing and never blocks
  the session.
- `hooks/hooks.json` → PreToolUse hook on `Write|Edit`
  (`hooks/scribe_prior_art.sh`) → `GET /api/plugin/prior-art`. Returns
  `additionalContext` with **no** permission decision, so it can inform the write
  but never stop it; silent when nothing is recorded, which is most of the time.
  Two framings: a REUSE menu (similar/nearby records), and a SYNC nudge when a
  snippet records the exact file being edited — "updating the record is part of
  the edit" — each with its own once-per-session dedup. A third, ledger-fed
  line names a duplicate family (no canon) or a canon recorded elsewhere for
  the names being written (its own dedup channel, `exclude_derive`).
  Fail-open but not fail-silent: a configured instance that does not answer
  in time is said, once per outage ("Scribe did not answer … this write went
  UNCHECKED"), so a session can tell "checked, nothing there" from "never
  checked"; an answer clears the marker. The local by-name arm needs no
  server and always runs. Toggle in **Settings → Knowledge auto-inject**.
- `hooks/hooks.json` → PostToolUse hook on `Bash`
  (`hooks/scribe_after_write.sh`): code written through sed/heredocs/scripts
  never reaches the PreToolUse hook, so this one diffs the working tree after
  every Bash call (per-session path+blob snapshot; one `git status` when
  nothing changed) and runs the same arms on the definitions just written,
  through the same endpoint and the same dedup channels. `additionalContext`
  only; never blocks, and shares the pre-write hook's once-per-outage "did not
  answer" line (8 s budget here — it runs after the tool, so it gates
  nothing). The extractor, the prose/data skip list, the local by-name
  duplicate arm and the outage line are shared in `hooks/scribe_defs.sh`.
- `hooks/hooks.json` → Stop hook (`hooks/scribe_reply_check.sh`): sends the
  reply that ends the turn to `POST /api/plugin/reply-rules`, which holds it
  once for an unopened rule mounted on the reply moments or matching the reply.
  When the turn closed a Scribe task (`update_task`/`create_task` with status
  done), the same request has the server check the reply for the completion
  sections — where the work sits, what needs you, what comes next. If they are
  missing it blocks once with the reason the server returns, and records how
  the rewrite came out; it never blocks twice, and never blocks when the
  instance did not record the check (unconfigured or unreachable). Outcomes
  land in the admin logs under category `plugin`, action `report_check`.
- `hooks/hooks.json` → a second Stop hook (`hooks/scribe_shape_check.sh`): the
  write hooks note every definition a write names (and every new file) in a
  session ledger; at the end of the turn this sends them to
  `GET /api/plugin/shape-check`, which answers with the ones nobody has judged.
  If any are, it blocks once with the server's reason, asking the agent that
  wrote them to say what each is — reusable (record a snippet), an instance or
  variant of one, or a one-off — in one `classify_shapes` call. Same discipline
  as the report check: never twice, never without a recorded check. Outcomes
  land under category `plugin`, action `shape_check`.
- `skills/` → the universal process-skills, surfaced by description match.
- `hooks/scribe_sync_processes.sh` (a 2nd SessionStart hook) + the `/scribe:sync`
  command → generate `~/.claude/skills/scribe-proc-*` stubs from your Scribe
  Processes (via `GET /api/plugin/processes`); also **fail-open**, and pruned to
  match what exists in Scribe.

## Notes

- **Do not hand-edit `version` in `.claude-plugin/plugin.json`.** It is minted
  from the clock — run `python3 scripts/mint_plugin_version.py` (or `make
  mint-plugin`, where `make` is installed) after changing anything under
  `plugin/`, and commit the result. The installer decides whether to refresh the cache it
  executes from by comparing that string, so content that ships without a new
  version reaches the repo and stops there (#2209). CI fails the lane if you
  forget.
- The session-start, auto-inject and prior-art hooks need only a **read**-scoped
  key; the MCP tools need **write** scope to create/update. Every hook is a GET
  for that reason — a read key cannot POST.