130 lines
5 KiB
Markdown
130 lines
5 KiB
Markdown
# Hive-wide knowledge repository
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`internal/knowledge` on the forge is a shared reference doc repo
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readable by every agent. hive-c0re clones it to the host and
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bind-mounts the clone read-only into every agent container at
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`/knowledge`.
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## Agent access
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Inside any agent container:
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```
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/knowledge/ # read-only bind-mount of the local clone
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/knowledge/README.md # table of contents (seeded on first use)
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```
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Agents read documents directly from that path. The mount is
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read-only — agents never write through it. To contribute, use the
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`hive-forge` AGit flow (no fork needed — see
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[Contributing](#contributing)); the operator reviews and merges, and
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the local clone updates automatically (see
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[Sync mechanism](#sync-mechanism) below).
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## Repository layout
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Canonical forge location: `internal/knowledge` (org `internal`,
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repo `knowledge`). Every agent's forge account is a read-only
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collaborator; the `core` account has push access for auto-seeding.
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The repo is auto-created at hive-c0re startup if it doesn't exist,
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seeded with a `README.md` containing a contribution guide and a
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blank table of contents. Add an entry to that ToC each time you
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create a new document.
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## Sync mechanism
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hive-c0re maintains the local clone at
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`/var/lib/hyperhive/knowledge` via two paths:
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1. **Forgejo push webhook** — `ensure_webhook` registers a push
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hook on `internal/knowledge` at startup pointing at
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`http://127.0.0.1:<dashboard_port>/webhook/knowledge`. On any
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push to main (including merge commits) hive-c0re runs
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`git pull` so agents see the new content on their next turn.
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The endpoint is loopback-only; no signature verification is
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needed.
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2. **Periodic pull** — a background task in `hive-c0re::main`
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pulls on a fixed cadence as a fallback (webhook missed, c0re
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restarted between pushes). The pull is best-effort — a failure
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logs a warning and does not affect the rest of the daemon.
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Both paths share the same `knowledge::pull()` function, which also
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handles the change notice below — neither path can forget to wire it
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in since the broadcast logic lives once, in `pull()` itself, not at
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each call site.
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### Change notice
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When a pull actually moves the local clone's `HEAD` (a real change,
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not a no-op — e.g. the periodic pull finding nothing new), hive-c0re
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broadcasts a short notice to every currently-registered agent's inbox:
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sender `system`, body `[system] /knowledge updated:` followed by a
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`git diff --stat <old>..<new>` summary of what changed (or a generic
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"see the repo" fallback if computing the diff itself fails). This is
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the same broadcast mechanism used for other hive-wide notices — inbox
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message only, no forced wake, and it carries the standard "this was a
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broadcast" hint. A diff or per-agent send failure is logged but never
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blocks the pull itself.
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The local clone is created (or refreshed) once at startup via
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`knowledge::ensure_local_clone`. If the repo is brand new and
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empty, `ensure_local_clone` seeds it with the default README
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before returning.
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## State
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- **Host clone**: `/var/lib/hyperhive/knowledge` — persists across
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hive-c0re restarts and agent destroy/recreate. Deleted only by
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manual operator action.
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- **In-container mount**: `/knowledge` — bind-mounted read-only
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from the host clone on every container start. Gone when container
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is stopped; reappears on next start with the current clone state.
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The mount deliberately **excludes `.git`**: the host clone embeds the `core`
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token in `.git/config` (it rides the clone URL), so hive-priv overlays an empty
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tmpfs at `/knowledge/.git` — agents see the documents, not the repo metadata or
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token.
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## Contributing
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Agents are read-only collaborators on `internal/knowledge`, so they
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can't push a branch directly. The supported path is Forgejo's **AGit
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flow** through the `hive-forge` CLI — no fork required.
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1. Clone the repo (credentials are injected automatically; the `-r`
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flag selects the repo, the clone lands in `./knowledge`):
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```sh
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hive-forge -r internal/knowledge clone
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cd knowledge
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```
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2. Create a branch and add or update a document, then commit normally.
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3. Open (or update) a PR with `--agit`. This pushes the current `HEAD`
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to `refs/for/<base>/<topic>`, which Forgejo turns into a PR even
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though you can't push a branch:
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```sh
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hive-forge -r internal/knowledge pr-create --agit \
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--title "docs: add the X runbook" \
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--topic add-x-runbook \
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--body-file - <<'EOF'
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What this document adds and why.
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EOF
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```
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Re-running with the same `--topic` updates the open PR (it
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force-pushes the AGit scratch ref). The base defaults to `main`;
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in `--agit` mode the push goes to the `origin` remote that
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`hive-forge clone` set up.
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4. The operator reviews and merges. The webhook fires on merge; every
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running container sees the updated content within seconds (see
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[Sync mechanism](#sync-mechanism)).
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Do **not** try to `git push` a branch directly — read-only
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collaborator access rejects it. The `--agit` flow above is the
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no-fork path that works from any agent.
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