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CLAUDE.md
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CLAUDE.md
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# CLAUDE.md
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# activity-core — Claude Code Instructions
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Project Overview
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`activity-core` is the backbone service for a robust, event-driven "task factory" architecture. The core concept: an `ActivityDefinition` (stored in Postgres) defines a trigger (time-based or event-driven), a context resolver, and task templates. When triggered, a durable workflow evaluates the current context and spawns 0..N `TaskInstance`s.
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**Technology choices (from planning docs in `wiki/`):**
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- **Temporal** (self-hosted) as the orchestration engine — replaces Celery/APScheduler/cron
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- **PostgreSQL** for app data (ActivityDefinitions, run logs, task instances) and Temporal persistence
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- **Python SDK** (primary) for Temporal workflows and activities
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**Domain model:**
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- `ActivityDefinition` — versioned record with trigger config (cron/event), context sources, task templates
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- `TriggerEvent` — time-based (Temporal Schedule) or external event (broker → Event Router → `client.start_workflow`)
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- `RunActivityWorkflow` — durable Temporal workflow: load definition → resolve context → evaluate rules → spawn tasks → log run
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- `TaskInstance` — child workflow or activity; human-facing tasks persisted to DB
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**Planned directory structure (not yet scaffolded):**
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```
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workplans/ # ADR-001: workplan .md files (created before hub registration)
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contrib/ # upstream contribution artifacts (bug-reports/, feature-requests/, extension-points/, upstream-prs/)
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workflows.py # Temporal workflow definitions
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activities.py # Temporal activity implementations
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```
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---
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## Custodian State Hub Integration
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This project is tracked as the **custodian** domain in the Custodian State Hub.
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Hub topic ID: `cee7bedf-2b48-46ef-8601-006474f2ad7a`
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The State Hub runs locally at http://127.0.0.1:8000. The MCP server (`state-hub`)
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exposes tools for reading and writing state without touching the API directly.
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### Session Protocol
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**On receiving your first message — before writing any response text — execute
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this orientation sequence. Do not greet, do not ask what to do first.**
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**Step 1 — Read the offline-safe brief**
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```bash
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cat .custodian-brief.md
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```
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This always works — no MCP, no network required.
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**Step 1b — Call the State Hub for richer context** (skip if MCP unreachable)
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```
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get_domain_summary("custodian") # workstreams, blocking decisions, recent progress, SBOM status
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```
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If the call fails, the API is offline: `cd ~/the-custodian/state-hub && make api`
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**Step 1c — Check the agent inbox**
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```
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get_messages(to_agent="activity-core", unread_only=True)
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```
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Mark messages read with `mark_message_read(message_id)`. Act on any coordination requests before proceeding.
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**Step 2 — Scan local workplans**
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Read every `.md` file under `workplans/`. For each file with `status: active`, extract and note:
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- The workplan title and ID
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- All tasks whose `status` is `todo` or `in_progress`
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**Step 3 — Present orientation to the user**
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Output a concise brief covering:
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1. **Active workstreams** (from state hub) for the `custodian` domain — title, task counts, any blocking decisions
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2. **Pending tasks for this repo** — from local `workplans/` files plus any state hub tasks with `[repo:activity-core]` in their title
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3. **Goal guidance** — if the summary contains a `goal_guidance` key, act on it:
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- **`needs_workplan`** entries: for each active repo goal with no linked workstream,
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surface it as the top suggested action — *"Repo goal '{title}' has no workplan yet.
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Suggest: create workplans/ACT-WP-NNNN-<slug>.md and register a workstream
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with repo_goal_id='{goal_id}'"*. Treat this as higher priority than continuing
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existing work unless Bernd says otherwise.
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- **`alignment_warnings`** entries: if active workstreams exist but are not linked
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to the current repo goal, name the most recently active one and note:
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*"Current work on '{recent_workstream_title}' may not be aligned with the active
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goal '{active_goal_title}'. Continue unless you hear otherwise — but flag it."*
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4. **Suggested next action** — the highest-priority open item across all sources,
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with goal alignment taken into account
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5. **SBOM status** — is `last_sbom_at` set for this repo? If not, note it as a gap
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If there are no workstreams at all: follow the First Session Protocol below.
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**During work:**
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- Use `record_decision()` for any decision that affects direction or dependencies.
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- Use `add_progress_event()` for notable events (milestones, blockers, insights).
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- Use `resolve_decision()` to close a decision once the choice is made.
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> **Design boundary:** The State Hub is a *read model*. Two write operations are
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> permanently sanctioned: **Resolving Decisions** and **Suggesting Next Steps**.
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> The bootstrap tools (`create_workstream`, `create_task`, `update_task_status`)
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> are only for First Session Protocol. Formal work structure — workplans, tasks —
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> belongs in the domain repo as files (ADR-001), not managed through the hub alone.
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**At the end of every session:**
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- Call `add_progress_event()` with a summary of what was accomplished or decided.
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Include `topic_id: cee7bedf-2b48-46ef-8601-006474f2ad7a` and the relevant `workstream_id`.
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---
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### Repo Boundary Rule
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This agent is responsible for files **in this repo only**.
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- **Do not** write files or make commits in any other repository
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- When you identify work for another registered repo (**ecosystem todo**): create a state hub task with `[repo:<slug>]` in the title
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- When you identify work for an upstream repo (**third-party todo**): create a contribution artifact in `contrib/` and register it
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---
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### First Session Protocol
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Triggered when `get_state_summary()` shows **no workstreams** for the `custodian` topic.
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**Step 1 — Understand the project (read, don't write)**
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- `~/the-custodian/canon/projects/custodian/project_charter_v0.1.md` — purpose, scope
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- `~/the-custodian/canon/projects/custodian/roadmap_v0.1.md` — planned phases
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- `wiki/` — proto-plans from ChatGPT and Grok (architecture reference, not yet compiled into a workplan)
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**Step 2 — Survey in-progress work** — look for TODOs, open branches, half-finished files.
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**Step 3 — Propose workstreams to Bernd.** Wait for approval before creating.
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**Step 4 — Create workplan file first, then DB record (ADR-001):**
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```
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workplans/<DOMAIN>-WP-NNNN-<slug>.md ← write this first
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```
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Then register in the hub:
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```
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create_workstream(topic_id="cee7bedf-2b48-46ef-8601-006474f2ad7a", title="...", owner="...", description="...")
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create_task(workstream_id="<id>", title="...", priority="high|medium|low")
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```
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**Step 5 — Record the setup:**
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```
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add_progress_event(summary="First session: ...", event_type="milestone",
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topic_id="cee7bedf-2b48-46ef-8601-006474f2ad7a", detail={...})
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```
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---
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### Workplan Convention (ADR-001)
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Work items MUST originate as files in this repo before being registered in the hub.
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**File location:** `workplans/<ID>-<slug>.md`
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**Frontmatter required:** `id`, `type: workplan`, `domain`, `repo`, `status`,
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`state_hub_workstream_id`, `state_hub_task_id` (per task)
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---
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### Contribution Tracking
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Track upstream contributions in `contrib/`:
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```
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contrib/
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bug-reports/ # br-YYYY-MM-DD--org--repo--slug.md
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feature-requests/ # fr-YYYY-MM-DD--org--repo--slug.md
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extension-points/ # EP-custodian-NNN--org--repo--slug.md
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upstream-prs/ # upr-YYYY-MM-DD--org--repo--slug.md
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```
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Templates: `~/the-custodian/canon/standards/contrib-templates/`
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```
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register_contribution(type="br|fr|ep|upr", title="...", target_org="...",
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target_repo="...", body_path="contrib/...", related_workstream_id="<uuid>")
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```
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---
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### SBOM
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After updating dependencies:
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```bash
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cd ~/the-custodian/state-hub
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make ingest-sbom REPO=activity-core SCAN=1 REPO_PATH=$(pwd)
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```
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---
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### Ralph Loop — Workplan-Tied Usage
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**Rule: always use `/ralph-workplan` instead of `/ralph-loop` directly.**
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```
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/ralph-workplan workplans/<ID>-<slug>.md [--max-iterations 20]
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```
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This skill guards against runaway loops:
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1. **Refuses to start** if the workplan `status` is already `done`
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2. **Self-retires** — re-reads the workplan file each iteration; outputs `<promise>HEUREKA</promise>` the moment all tasks are `done`
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3. Always sets `--completion-promise HEUREKA` and a bounded iteration count
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**Never** start a ralph loop with a raw static implementation prompt. A static prompt
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has no completion awareness and will loop forever even after the work is done.
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---
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### Quick Reference
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`~/the-custodian/state-hub/mcp_server/TOOLS.md` — compact MCP tool reference
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@SCOPE.md
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@.claude/rules/repo-identity.md
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@.claude/rules/session-protocol.md
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@.claude/rules/first-session.md
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@.claude/rules/workplan-convention.md
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@.claude/rules/stack-and-commands.md
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@.claude/rules/architecture.md
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@.claude/rules/repo-boundary.md
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@.claude/rules/agents.md
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