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FactoGraph

by factograph.app · remote · no sign-in to list tools · v0.2.0 · published by app.factograph

Memory for AI agents: facts a person approved, each with a link, and answers that cite them.

Deletes · 2Changes · 3
CompareRegistry entry

7 tools: 2 can delete or cancel things, 3 change things and 2 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http factograph https://api.factograph.app/api/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • WarngetManual

    The server marks "getManual" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "getManual" says "get": a word for reading.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

7 tools

Deletes or cancels 2Claude Code: deny
  • replyToPromptAnswer the prompt a step is waiting on - do the model work in its `system` and `messages` first.No findings

    Why it is in this group

    • The name "replyToPrompt" says "reply": a word for sending, and what is sent cannot be taken back.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Answer the prompt a step is waiting on - do the model work in its `system` and `messages` first. Keep answering until the step is done or failed.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: false
  • startStepStart a step - propose, add, documents, ask or remove - in a private store, with its JSON body, as the manual says.No findings

    Why it is in this group

    • The name "startStep" says "start": a word for a change.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Start a step - propose, add, documents, ask or remove - in a private store, with its JSON body, as the manual says. propose stores nothing; add stores only facts the person approved, with propose's proposal_id and their reply as confirmation; remove deletes only with confirm true, after the person confirmed. Returns the step's state: `waiting` (a prompt to do and answer with replyToPrompt), `running` (call getStep), `done` (do what `next` says) or `failed`.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: false
Changes things 3Claude Code: ask
  • askAsk a question; the store answers only from its facts, each claim linked to its fact, and checks the answer against them.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Ask a question; the store answers only from its facts, each claim linked to its fact, and checks the answer against them. Stores nothing. Returns the step's state: `waiting` (a prompt to do and answer with replyToPrompt), `running` (call getStep), `done` (do what `next` says) or `failed`.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • createStoreA new, empty FactoGraph store of the person's own: its private link, which these tools take as `store`.No findings

    Why it is in this group

    • The name "createStore" says "create": a word for a change.
    Description, as the server wrote it
    A new, empty FactoGraph store of the person's own: its private link, which these tools take as `store`. Only after the person said yes to having one. Nothing is stored until the link is first opened. The link is the store's key: give it to them once, and never put it anywhere public.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • getManualThe store's manual - how to run its steps and cite its facts - and what it holds: how many facts, from which sources.1 finding

    Why it is in this group

    • The name "getManual" says "get": a word for reading.
    • The description's first verb is "store": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "getManual" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "getManual" says "get": a word for reading.

      What this check looks for
    Description, as the server wrote it
    The store's manual - how to run its steps and cite its facts - and what it holds: how many facts, from which sources. Read it before the store's other tools, and follow it.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 2Claude Code: allow
  • getStepWhere a running step is now: its next prompt, or its result.No findings

    Why it is in this group

    • The name "getStep" says "get": a word for reading.
    Description, as the server wrote it
    Where a running step is now: its next prompt, or its result.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • listFactsEvery fact in the store, numbered, each number a link to the fact.No findings

    Why it is in this group

    • The name "listFacts" says "list": a word for reading.
    Description, as the server wrote it
    Every fact in the store, numbered, each number a link to the fact. Cite a fact as its number with its link, [F3](<link>).

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http factograph https://api.factograph.app/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__factograph__listFacts",
      "mcp__factograph__getStep"
    ],
    "ask": [
      "mcp__factograph__getManual",
      "mcp__factograph__ask",
      "mcp__factograph__createStore"
    ],
    "deny": [
      "mcp__factograph__startStep",
      "mcp__factograph__replyToPrompt"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as factograph. Review it before you use it.