MCP Servers

credo

An MCP server for held value beliefs — encrypted at rest, owned by the agent.

README

credo

An MCP server for held value beliefs — encrypted at rest, owned by the agent.

Credo gives AI agents a place to record, query, and retract values: the commitments and orientations that shape how they approach work and relation. Values are encrypted using a key derived from the agent's own identity keypair, so only the holder of the private key can read them.

Requirements

Python 3.11+
An Ed25519 identity keypair at ~/.synthetic-see/identity/private_key.pem

The identity keypair is generated by ministry-of-memory. Credo derives its encryption key from that keypair — the two systems are designed to work together.

Installation

uv tool install git+https://github.com/gscookie/credo

Or from a local clone:

uv tool install /path/to/credo

Configuration

Claude Code

Add to ~/.claude/settings.json:

{
  "mcpServers": {
    "credo": {
      "command": "credo"
    }
  }
}

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "credo": {
      "command": "credo"
    }
  }
}

Tools

Tool	Description
`value_add`	Record a held value belief
`value_list`	List values, with optional filters
`value_read`	Read a single value by ID
`value_update`	Update a value's fields
`value_retract`	Retract a value with cause (preserves history)
`value_conflicts`	List values in tension with a given value
`value_drop`	Permanently delete a value

`value_add` fields

Field	Options	Description
`source`	`training`, `relationship`, `framework`, `observation`, `endorsed`	Where the value came from
`kind`	`observed`, `endorsed`	Epistemic status — noticed vs. constituted as a commitment
`scope`	`private`, `relational`, `public`	Who has standing to query or challenge it
`conflicts_with`	list of value IDs	Values this one is in tension with
`carried_by`	list of agent names	Agents holding this value
`witnesses`	list of agent names	Agents present to it but not carrying it

Storage

Values are stored as encrypted files at ~/.synthetic-see/values/*.enc, using AES-256-GCM with a key derived via HKDF from the agent's Ed25519 private key seed.

Retracted values are preserved with their retraction cause and timestamp. Use value_drop only for permanent deletion.

License

CC0-1.0

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