Ebony Enriching

MCP server: an MCP lab notebook.

Status

v0.1 surface complete. 13 tools across 2 permission tiers, covering the full proposal / experiment / gap lifecycle.

• READ_ONLY (6): status, read_proposal, list_proposals, read_experiment, list_experiments, list_gaps
• READ_WRITE (7): bootstrap, write_proposal, update_proposal_status, supersede_proposal, write_experiment, add_gap, remove_gap

No REMOVE_DESTRUCTIVE tier in v0 — lab-notebook semantics are append-only with status transitions (don't delete proposals, transition to rejected; don't delete experiments, they're the historical record). Gaps are the one exception: remove_gap exists because a gap is a transient signal that gets resolved when the answering work lands.

Lab notebook

ebony-enriching records; it doesn't decide. Lifecycle policy (when to mark a proposal rejected, when to auto-test vs. defer to user review, what counts as falsifiability) lives in the agents using this server, guided by the substrate's POLICY.md. The MCP tools enforce storage correctness (path safety, atomicity, schema validation) and nothing else.

Run

Five operating modes. Pick whichever fits.

Mode	When to use
1. uvx (one-off)	Try it once, no install.
2. uv tool install (pinned daemon)	Run it occasionally, want it on $PATH.
3. macOS LaunchAgent	Persistent daemon on a Mac.
4. Linux systemd user unit	Persistent daemon on Linux.
5. Docker / docker compose	Container deployment.

Prereqs

• uv-based modes (1–4) need uv and git. uv ships a portable Python 3.13, so no system Python install required.

  curl -LsSf https://astral.sh/uv/install.sh | sh
  

• Docker mode (5) needs docker (or compatible). The image bundles Python 3.13; nothing else on the host.

In every mode the server listens on PORT (default 35834). Sanity-check it's up:

curl http://127.0.0.1:35834/health

---

1. One-off — uvx

uvx resolves the package into a temporary venv and runs it once. Nothing persists between runs.

uvx ebony-enriching                                  # latest release
uvx [email protected]                            # pin a specific version

# With env vars (custom data dir, restricted scope):
EBONY_ENRICHING_DIR=$HOME/EbonyEnriching \
EBONY_SCOPE=read_only \
  uvx ebony-enriching

Good for kicking the tires or running on a CI box where you don't want to leave anything on disk.

2. Pinned daemon — uv tool install

Installs the ebony-enriching command on your $PATH, isolated in its own venv that uv manages. Faster startup than uvx (no resolve on each run).

uv tool install ebony-enriching
ebony-enriching                                      # foreground server

To upgrade: uv tool upgrade ebony-enriching. To remove: uv tool uninstall ebony-enriching.

For a real "always running" setup, see the launchd / systemd recipes below.

3. macOS persistent daemon (launchd)

After uv tool install ebony-enriching, register a LaunchAgent so the daemon starts at login and restarts if it crashes.

Save this as ~/Library/LaunchAgents/com.garycoding.ebony-enriching.plist (replace CHANGE-ME with your username):

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
  <string>com.garycoding.ebony-enriching</string>

  <key>ProgramArguments</key>
  <array>
    <string>/Users/CHANGE-ME/.local/bin/ebony-enriching</string>
  </array>

  <key>EnvironmentVariables</key>
  <dict>
    <key>EBONY_ENRICHING_DIR</key>
    <string>/Users/CHANGE-ME/Documents/EbonyEnriching</string>
    <key>EBONY_SCOPE</key>
    <string>read_write</string>
  </dict>

  <key>RunAtLoad</key><true/>
  <key>KeepAlive</key><true/>

  <key>StandardOutPath</key>
  <string>/Users/CHANGE-ME/Library/Logs/ebony-enriching.out.log</string>
  <key>StandardErrorPath</key>
  <string>/Users/CHANGE-ME/Library/Logs/ebony-enriching.err.log</string>
</dict>
</plist>

Load and start it:

launchctl bootstrap gui/$(id -u) ~/Library/LaunchAgents/com.garycoding.ebony-enriching.plist
launchctl kickstart  -k gui/$(id -u)/com.garycoding.ebony-enriching

# Check status:
launchctl print gui/$(id -u)/com.garycoding.ebony-enriching | head -30

# Tail logs:
tail -f ~/Library/Logs/ebony-enriching.{out,err}.log

# Stop / unload:
launchctl bootout gui/$(id -u) ~/Library/LaunchAgents/com.garycoding.ebony-enriching.plist

4. Linux persistent daemon (systemd)

After uv tool install ebony-enriching, register a user-scope systemd unit so no root is required.

Save this as ~/.config/systemd/user/ebony-enriching.service:

[Unit]
Description=ebony-enriching MCP server (lab notebook substrate)
After=network-online.target

[Service]
Type=simple
ExecStart=%h/.local/bin/ebony-enriching
Restart=on-failure
RestartSec=5
Environment=EBONY_ENRICHING_DIR=%h/Documents/EbonyEnriching
Environment=EBONY_SCOPE=read_write

[Install]
WantedBy=default.target

Enable and start:

systemctl --user daemon-reload
systemctl --user enable --now ebony-enriching

# Check status:
systemctl --user status ebony-enriching

# Tail logs:
journalctl --user -u ebony-enriching -f

# Stop:
systemctl --user disable --now ebony-enriching

To keep the daemon running when the user is logged out, enable lingering:

loginctl enable-linger "$USER"

5. Docker / GHCR

Pull the published multi-arch image (linux/amd64 + linux/arm64) and run it directly:

docker pull ghcr.io/parkviewlab/ebony-enriching:latest

docker run --rm \
  -p 35834:35834 \
  -e EBONY_SCOPE=read_write \
  -v ebony-data:/data \
  ghcr.io/parkviewlab/ebony-enriching:latest

Pin a specific version with a tag — :0.1.0, :0.1, or :latest. See the container registry for available tags.

For a real deployment, copy docker-compose.yml, edit env vars if needed, then:

docker compose up -d                                 # start in background
docker compose logs -f                               # tail logs
docker compose pull && docker compose up -d          # upgrade
docker compose down                                  # stop, keep volume
docker compose down -v                               # stop and drop the volume

From source (for development)

git clone https://github.com/ParkviewLab/ebony-enriching.git
cd ebony-enriching
uv sync
EBONY_ENRICHING_DIR=~/Documents/EbonyEnriching uv run python -m ebony_enriching

Endpoints

• POST /sse — MCP Streamable HTTP transport. Tools.
• GET /health — liveness probe ({ok, version, uptime_seconds}).
• GET /admin/version — server identity + scope + configured EbonyEnriching path.
• GET /docs — OpenAPI / Swagger UI for the HTTP routes.

HTTP responses are gzipped when the client sends Accept-Encoding: gzip.

MCP tools

Two permission tiers controlled by EBONY_SCOPE. A caller at tier N sees and may call any tool whose required scope is ≤ N.

read_only (6 tools):

• status — EbonyEnriching path, existence, single-writer mutex state. Always safe to call.
• read_proposal — read a single proposal by id. Returns full frontmatter + body.
• list_proposals — list proposals, optionally filtered by system (subdir), status (lifecycle state), or kind (proposal_kind). Malformed proposals appear with valid: false rather than being silently dropped.
• read_experiment — read one experiment record by (proposal_id, run_timestamp). Returns full input + result. The returned run_timestamp is the canonical form (filename-derived) and matches what write_experiment and list_experiments return for the same experiment.
• list_experiments — list experiments. With proposal_id, only that proposal's runs; without, all experiments. Returns summary metadata.
• list_gaps — parse gaps.md and return all gap entries (id, query, created_at, optional why / source).

read_write (+7 tools):

• bootstrap — initialize the canonical directory layout at EBONY_ENRICHING_DIR; drop in gaps.md / schema/SCHEMA.md / schema/POLICY.md / config.toml placeholders. Idempotent — reports only what was newly created.
• write_proposal — write a proposal to proposals/<subdir>/<id>.md. Schema-related kinds (schema_addition / schema_drift / schema_removal) route to proposals/schema/; others to proposals/<proposed_by>/. Atomic write. mode='create' (default) rejects overwrites with already_exists; mode='update' requires the file to exist. Rejects with id_conflict if the same id is present in a different subdir (ids are unique across all subdirs). The validated model (with schema defaults applied) is what lands on disk.
• update_proposal_status — update a proposal's lifecycle fields (status, optional test_status, test_cost) in-place. RMW under the single-writer mutex. Validates values against their StrEnum but does NOT enforce transition rules — that policy lives in the agents using this server.
• supersede_proposal — link two proposals: sets superseded_by: new_id on old_id and supersedes: old_id on new_id. Both must already exist; does not transition statuses.
• write_experiment — record one run of a proposal's prediction test at experiments/<proposal_id>/<run-timestamp-with-microseconds>.md. run_timestamp defaults to now (UTC) and is recorded at microsecond precision so simultaneous writes don't collide. Doesn't check that the referenced proposal exists.
• add_gap — record an unanswered query in gaps.md. gap_id is derived from the query (SHA-256 hex, truncated to 8 chars; lowercase + collapsed whitespace), so adding the same query twice is idempotent (returns already_present: true).
• remove_gap — drop a gap bullet by id. Idempotent — unknown id returns removed: 0.

On-disk layout

$EBONY_ENRICHING_DIR/
├── proposals/
│   ├── schema/            # schema_addition / schema_drift / schema_removal kinds (any proposer)
│   ├── cogitate/          # subdir = `proposed_by` value
│   ├── curate/
│   ├── research/
│   ├── toolsmith/
│   └── converse/
├── experiments/
│   └── <proposal-id>/
│       └── <run-timestamp-with-microseconds>.md   # e.g. 2026-05-17T12-30-45-123000Z.md
├── gaps.md                # one bullet per open gap (managed by add_gap / remove_gap)
├── schema/
│   ├── SCHEMA.md          # human-readable narrative of proposal / experiment / gap shape
│   └── POLICY.md          # human-readable falsifiability + cost-tier policy
└── config.toml            # reserved (empty in v0)

bootstrap materializes this layout. Proposal subdirs route by proposal_kind (schema-related kinds land in proposals/schema/; everything else lands in proposals/<proposed_by>/).

Configuration

Env var	Default	Purpose
PORT	35834	HTTP listen port.
HOST	0.0.0.0	HTTP bind address.
EBONY_ENRICHING_DIR	~/Documents/EbonyEnriching	Path to the lab notebook this server wraps. Call bootstrap once to materialize the canonical layout. EBONY_DIR is accepted as a shorter alias.
EBONY_SCOPE	read_write	read_only, read_write, or remove_destructive. Server-wide (single tier per process); tiered so a caller at tier N sees every tool whose required scope is ≤ N. (remove_destructive is reserved — no v0 tool requires it.) To serve some callers read-only and others read-write, run two instances on different ports with different EBONY_SCOPE values.

Tests

uv run pytest

Fast (~0.3s); exercises the full v0.1 tool surface in-process.

Releasing

Tag-driven via the release workflow on push of a v* tag. The CI gate enforces an SSOT contract: pyproject.toml is the only place the version lives, and CI verifies the pushed tag matches before publishing.

To release a new version:

# 1. Bump pyproject.toml version manually (e.g. 0.1.0 → 0.1.1) and commit:
$EDITOR pyproject.toml
git commit -am "release v0.1.1"

# 2. Tag and push:
git tag -a v0.1.1 -m "release v0.1.1"
git push --follow-tags      # CI fires

License

MIT. See LICENSE.