Mathias Bergqvist 317ec20392 fix(hyperguild): brain Query uses POST /query with JSON body
The brain HTTP REST /query endpoint accepts POST with JSON
{query, limit}, not GET with URL query string. Surfaced by
Task 7 smoke testing — GET returned 405 Method Not Allowed.

The response shape ({results:[...]}) is unchanged; only the
request side flips to POST + JSON body. brainClient.Write was
already using POST + JSON body and is unaffected.

Tests updated to assert POST + JSON body on the Query path.
2026-05-03 21:59:17 +02:00

hyperguild

An MCP server that acts as a disciplined AI supervisor for Claude Code sessions. Instead of letting Claude Code do whatever it wants, hyperguild enforces structured workflows (TDD red/green/refactor), logs every session, and accumulates learnings into a searchable brain.

How it works

Your Claude Code session (in any project)
    │
    │  MCP over HTTP (Tailscale)
    ├──▶ supervisor  :3200 (NodePort 30320 on koala) — skill workers: tdd, debug, spec, …
    └──▶ brain       :3300 (NodePort 30330 on koala) — brain_query, brain_write, brain_ingest, session_log
                       │
                       └─ also serves the legacy REST endpoints (/query, /write, /ingest, …)
    │
    ▼
brain/
├── sessions/       — JSONL log, one file per session_id
├── wiki/           — searchable knowledge (full-text)
│   ├── concepts/
│   ├── entities/
│   └── sources/
├── raw/            — retrospective output, staged for review
└── training-data/  — SFT/DPO/RL data (Phase 2)

Phase 1 tools (available now)

Tool What it does
tdd_red Writes a failing test for a spec, verifies it fails
tdd_green Writes the minimal implementation to make tests pass
tdd_refactor Cleans up implementation while keeping tests green
session_log Appends a structured entry to the session JSONL log
retrospective Reads the session log, identifies novel learnings, writes to brain/raw/
brain_query Full-text search over brain/wiki/
brain_write Writes a note to brain/raw/ (with optional YAML frontmatter)
tier Returns the current connectivity tier (1=cloud, 2=LAN, 3=offline)

Start the servers

# Requires goreman: go install github.com/mattn/goreman@latest
task start    # starts ingestion (:3300) + supervisor (:3200) via goreman
task stop     # kills both by port

Connect a project

Create .mcp.json in your project root:

{
  "mcpServers": {
    "supervisor": {
      "type": "http",
      "url": "http://koala:30320/mcp"
    },
    "brain": {
      "type": "http",
      "url": "http://koala:30330/mcp"
    }
  }
}

Two MCP servers are exposed today, both reachable over Tailscale:

  • supervisor at koala:30320 — skill workers (tdd_red/green/refactor, review, debug, spec, retrospective, trainer, tier).
  • brain at koala:30330 — knowledge access (brain_query, brain_write, brain_ingest, brain_ingest_raw) and session_log. Hosted by the ingestion service directly, no separate pod.

No local binary or stdio shim is required — Claude Code talks to both via HTTP.

Open Claude Code in your project — run /mcp to confirm both servers are listed.

A typical TDD session

1. Call tdd_red    → spec in, failing test file out
2. Call tdd_green  → test path in, implementation out
3. Call tdd_refactor → impl + test in, cleaned code out
4. Call session_log  → log each phase result
5. Call retrospective → extracts learnings → brain/raw/
6. Review brain/raw/, move worthy notes to brain/wiki/concepts/
7. Future sessions: call brain_query to retrieve relevant context

Tier detection

The supervisor probes connectivity at call time:

Tier Label Condition
1 full-online Can reach api.anthropic.com
2 lan-only Can reach LiteLLM but not Anthropic
3 airplane No external connectivity

Key env vars

Variable Default Purpose
INGEST_BRAIN_DIR ../brain Brain directory for ingestion server
INGEST_PORT 3300 Ingestion server port
SUPERVISOR_CONFIG_DIR ./config/supervisor Skill discipline files
SUPERVISOR_SESSIONS_DIR ./brain/sessions JSONL session logs
INGEST_BASE_URL http://localhost:3300 Supervisor → ingestion
LITELLM_BASE_URL LiteLLM proxy for Tier 2 model routing

Phase 2 (planned)

  • review skill — structured code review with iron law enforcement
  • debug skill — hypothesis-driven debugging sessions
  • spec skill — generates specs from conversations
  • trainer — extracts SFT/DPO pairs from session logs for fine-tuning
Description
MCP supervisor for disciplined Claude Code sessions
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