Five Mcp — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited Five Mcp (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
MCP server for the FIVE Persona Engine — an LLM persona constraint engine that generates structured JSON constraints to eliminate persona drift. Instead of describing personality in words (which LLMs interpret differently each turn), FIVE defines behavioral parameters the LLM executes as a recipe. See how it works →
Measured: with the constraint JSON + free harness, the demo character survived a 120-turn pressure test with zero persona breaks (plain prompt: 8 breaks; JSON alone: 1). Numbers, transcripts and scripts →
pip install five-mcpSet your API key as an environment variable:
export FIVE_API_KEY=five_sk_your_key_hereGet your key at fiveengine.dev.
Add to your claude_desktop_config.json:
{
"mcpServers": {
"five-character-engine": {
"command": "five-mcp",
"env": {
"FIVE_API_KEY": "five_sk_your_key_here"
}
}
}
}Any MCP-compatible client can connect via stdio transport:
five-mcpgenerateGenerates persona constraints via the FIVE engine.
| Parameter | Type | Required | Description |
|---|---|---|---|
character_name | string | Yes | Name of the character |
q1 – q4 | A / B / C / D | Yes | Personality axis choices |
s1 – s4 | 1–5 | No | Style sliders (default: 3) |
free_text | string | No | Free-form description |
{
"status": "ok",
"remaining": 42,
"constraint": { "..." }
}Each generate call costs $1 and consumes one credit. Manage credits at fiveengine.dev.
MIT
<!-- mcp-name: io.github.kiro0x/five-mcp -->
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.