forge-mindmap

A tool for drawing a mind map: a central idea connected to branches and smaller points. It stores the map as structured data and can also create Mermaid or Markdown versions.

In plain words
What is it for?
Use it to visualize a project plan, software architecture, or breakdown of a larger task when several areas depend on one another.
Why use it?
It makes plans or system designs with many branches easier to understand than a flat list of text.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/forgeyclap/claude-forge/forge-mindmap
Any agent
npx skills add ForgeyClap/claude-forge --skill forge-mindmap
Clone the repo
git clone --depth 1 https://github.com/ForgeyClap/claude-forge

Made for: Claude Code, Codex.

Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 783 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00044 $0.00783
Opus 5 $0.00022 $0.00392
Sonnet 5 $0.00009 $0.00157
Haiku 4.5 $0.00004 $0.00078

Measured 2d ago against content hash 9069cad8861e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

forge-mindmap scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/forge-mindmap/SKILL.md · 40 lines

How it starts

The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Forge Mind Map (WP4)

A Forge mind map is a small node/edge graph — a root idea with branches and leaves — that the Lead generates to visualize a plan, an architecture, or a mission decomposition. It is built and stored by .claude/forge-bin/forge-mindmap.cjs, a zero-dependency writer that stores the structured JSON (and optional Mermaid/markdown sidecars) under .claude/forge-mindmaps/.

When the Lead generates one

  • To visualize a plan, architecture, or mission decomposition once it has real branching structure (a root idea with several sub-areas) — not for a flat 2-3 item list where prose is clearer.
  • Typically right after a Master Plan or Deep Learn Mode pass, so the map reflects real decisions already made, not a guess.
  • Not needed for a trivial, single-path task.

How

  1. Write the structure as an indented plain-text outline (2-space or tab indent = depth; the first line is the root):
    Mission Control Phase 2
      WP4 Mind Map
        Writer (forge-mindmap.cjs)
        Radial lens (dashboard)
      WP5 Next Work Package
    
  2. Build + store it:
    node .claude/forge-bin/forge-mindmap.cjs from-outline '<outline-text>' <map_id> --write --run <run_id> --mermaid
    
    • Omit --write to preview the parsed {nodes, edges} JSON without persisting anything.
    • --mermaid also writes a <map_id>.mmd Mermaid sidecar (graph TD, guarded — never crashes on odd input).
    • --run <run_id> logs mindmap_generated to that run's dashboard events — only fires once the map was actually written.
    • Already have a built {map_id, title?, nodes, edges} object instead of an outline? Use write directly: node .claude/forge-bin/forge-mindmap.cjs write '<map-json>' --write --run <run_id>.

What it produces

.claude/forge-mindmaps/<map_id>.json (the stored {map_id, title, nodes, edges, _generated}), optionally <map_id>.mmd (Mermaid) and <map_id>.md (nested outline), and an appended row in .claude/forge-mindmaps/index.jsonl. The dashboard's MIND MAP lens reads the latest stored map read-only and renders it as a root-centered radial graph (root at the center, branches/leaves on rings by depth, no node overlap).

Read the full file on GitHub · 40 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 40 lines · 44 tokens per session scan A 9069cad8861e

Subscribe to this mod's changes

forge-mindmap is a skill published in the GitHub repository ForgeyClap/claude-forge (2 stars, last pushed 29d ago), licensed MIT. It adds 44 tokens to every session and 783 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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