# Procheiron (pypi · procheiron)

Review gate for shared agent memory: an unreviewed or hand-edited memory is never served.

- Trust score: 62/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-20

## Components

- pypi · `procheiron`: 62/100 (this document), [markdown](https://verifymcp.io/servers/logotheusneuro-cpu-procheiron/procheiron.md), [page](https://verifymcp.io/servers/logotheusneuro-cpu-procheiron/procheiron)

## Channel facts

- Registry: `pypi`
- Package: `procheiron`
- Version: `0.3.3`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-20.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 35/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: the license (MIT License) isn't a recognized OSI-approved license.
  - Actively maintained (last published 8 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 41/100
  - 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 465 tokens (~93/item across 5 items; 4 tools + 1 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### Claude

```bash
claude mcp add logotheusneuro-cpu-procheiron -- uvx procheiron
```

### Codex

```bash
codex mcp add logotheusneuro-cpu-procheiron -- uvx procheiron
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "logotheusneuro-cpu-procheiron": {
      "type": "local",
      "command": [
        "uvx",
        "procheiron"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add logotheusneuro-cpu-procheiron --command uvx --arg procheiron
```

### Hermes

```yaml
mcp_servers:
  logotheusneuro-cpu-procheiron:
    command: "uvx"
    args: ["procheiron"]
```

### Other

```json
{
  "mcpServers": {
    "logotheusneuro-cpu-procheiron": {
      "command": "uvx",
      "args": [
        "procheiron"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-20 (score 62, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-18 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-16 (score 60, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-14 (score 59, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-13 (score 58, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-08-12 (score 43, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-11 (score 42, −8)

- [security regression] Malware scan: pass → unverified
- [functional regression] Schema quality: 81 → 93
- [functional improvement] Stability: unverified → 0.03
- [functional improvement] MCP protocol: fail → pass
- [functional] Schema quality: poor → good
- [functional] Package version: 0.3.2 → 0.3.3
- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-08-10 (score 50)

First indexed and scored.

## MCP tools (4)

### `memory.search` (~139 tokens)

Search Procheiron memory records (read-only). Every row carries `trusted` and `trust_reason` — never read `status` as trust on its own. A record claiming active/validated is returned only when the audit log's latest transition backs that claim; filters like status='active' narrow the results and never bypass that check. Pass include_untrusted=true to also receive records that failed it (each one labelled with why).

Input parameters:

- `include_untrusted` (boolean)
- `limit` (integer)
- `query` (string)
- `scope` (string)
- `status` (string)
- `type` (string)

### `memory.get` (~55 tokens)

Get one memory record by id (read-only). Returns the record plus a top-level `trusted` boolean and `trust_reason` — do not read `status` as trust on its own.

Input parameters:

- `memory_id` (string, required)

### `memory.propose` (~76 tokens)

Append a CANDIDATE memory (proposal-only, via the sanctioned writer).

Input parameters:

- `confidence` (number, required)
- `dry_run` (boolean)
- `scope` (string, required)
- `source_paths` (array, required)
- `statement` (string, required)
- `subject` (string, required)
- `type` (string, required)

### `memory.promote` (~127 tokens)

Promote a memory record — GATED. The reviewer/authorizer IS the bound MCP --actor; you cannot promote a record you created, and cannot act as another identity by passing a string. Reviewer/approver args, if sent, must equal the bound actor.

Input parameters:

- `approver_role` (string)
- `dry_run` (boolean)
- `memory_id` (string, required)
- `new_status` (string, required)
- `reason` (string, required)
- `reviewer_role` (string)
- `transition_from` (string, required)
- `transition_to` (string, required)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/logotheusneuro-cpu-procheiron/procheiron#diagnostics

## Score history

- 2026-08-20: 62
- 2026-08-19: 61
- 2026-08-18: 61
- 2026-08-17: 60
- 2026-08-16: 60
- 2026-08-15: 59
- 2026-08-14: 59
- 2026-08-13: 58
- 2026-08-12: 43
- 2026-08-11: 42
- 2026-08-10: 50

## Links

- PyPI project: https://pypi.org/project/procheiron/
- Socket report: https://socket.dev/pypi/package/procheiron
- Repository: https://github.com/logotheusneuro-cpu/procheiron-core
- Changelog RSS feed: https://verifymcp.io/servers/logotheusneuro-cpu-procheiron/procheiron.xml
- Changelog JSON feed: https://verifymcp.io/servers/logotheusneuro-cpu-procheiron/procheiron.json
- HTML version of this page: https://verifymcp.io/servers/logotheusneuro-cpu-procheiron/procheiron