inbox-to-mindmap

inbox-to-mindmap is a skill for Claude Code from grburgess/mindgap. It costs 157 tokens per session (5,684 once invoked), scanned A, original, MIT.

A document-ingestion workflow that extracts claims from files such as PDFs, slides, documents, spreadsheets, screenshots, saved pages, and emails, then adds those claims to a Mindgap knowledge graph. The original files are archived and kept as sources rather than used as knowledge nodes.

In plain words
What is it for?
Use it to process an inbox of documents, create atomic claim nodes, preserve file provenance, and archive the source files.
Why use it?
It turns a folder of mixed documents into reusable knowledge instead of leaving information buried in filenames and files.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions AGENTS.md.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/you/second_brain/inbox/retrieval/q3-review.pptx.

Part of the mindgap plugin — 13 skills shipped together

Good fit Use it to process an inbox of documents, create atomic claim nodes, preserve file provenance, and archive the source files.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add grburgess/mindgap
Claude Code
/plugin install mindgap

Made for: Claude Code.

Or install mindgap, the plugin that ships this one along with the rest of its 13 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for inbox-to-mindmap

README.md
[![agentmods](https://agentmods.dev/badge/skills/grburgess/mindgap/inbox-to-mindmap/github.svg)](https://agentmods.dev/skills/grburgess/mindgap/inbox-to-mindmap)
Your own site
<a href="https://agentmods.dev/skills/grburgess/mindgap/inbox-to-mindmap"><img src="https://agentmods.dev/badge/skills/grburgess/mindgap/inbox-to-mindmap/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for inbox-to-mindmap

Your own site · 80×15
<a href="https://agentmods.dev/skills/grburgess/mindgap/inbox-to-mindmap"><img src="https://agentmods.dev/badge/skills/grburgess/mindgap/inbox-to-mindmap.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 157 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,684 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00157 $0.05684
Opus 5.5 $0.00063 $0.02274
Sonnet 5.5 $0.00031 $0.01137
Haiku 4.5 $0.00016 $0.00568

Measured 23d ago against content hash 949aa33e9fb5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

inbox-to-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 23d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/extract_text.py, scripts/scan_inbox.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

mindgap-plugin/skills/inbox-to-mindmap/SKILL.md · 420 lines

How it starts

The opening of the file, as written. The whole thing — 420 lines — stays where its author put it; the contents beside it link to each section on GitHub.

inbox-to-mindmap

A folder is a staging area, not a filing cabinet. The user drops documents into ~/second_brain/inbox/; this skill reads them, puts the information into the graph, and archives the file to ~/second_brain/raw/. The documents themselves never become nodes — each one survives only as a file:// provenance URL (to its archived location) on the claims it produced.

That distinction is the whole point. A node called "Q3 architecture review deck" is a filename with extra steps: to use it you have to re-open the deck. A node called "Hybrid BM25 + dense retrieval beat dense-only by 14 points on internal eval" is knowledge — it answers a question on its own, links to other ideas, and gains confidence when a second document says the same thing. Nodes shaped like documents make a graph that mirrors a directory; nodes shaped like claims make a graph that thinks.

The binding ingest protocol is AGENTS.md. The rules that matter most here are repeated below.

Layout

Thing Default Override
Inbox folder ~/second_brain/inbox/ $MINDGAP_INBOX, or a path the user names
Archive ~/second_brain/raw/ —
Ledger ~/.mindgap/inbox-ledger.json --ledger

The inbox is a drop zone, not a home: once a file's claims have landed (or it is marked skipped), it MOVES to the archive — ~/second_brain/raw/YYYY/<topic>/ (S9.5). Files are never renamed beyond collision handling and never deleted; the archive is immutable ground truth. The ledger records sha256 → what was ingested, and dedup is by content hash, so moves are safe: a second run over the emptied inbox does nothing, and an edited re-drop returns as changed and gets re-read. If the inbox does not exist, say so and offer to create it rather than inventing a different path.

Pipeline

S1 — Scan (recursive)

python3 <skill>/scripts/scan_inbox.py [DIR] > /tmp/inbox.json

Walks the whole tree, at any depth. Every pending file comes back with status (new, changed, done, unsupported, skipped-large), its rel path, its folder, and the folder's segments. The same records are also grouped under folders, each with its context_files listed separately.

Read the full file on GitHub · 420 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 23d ago Changed · -1 lines 949aa33e9fb5
  2. 2mo ago First seen · 421 lines · 157 tokens per session scan A 29c02560069c

Subscribe to this mod's changes

inbox-to-mindmap is a skill published in the GitHub repository grburgess/mindgap (0 stars, last pushed 23d ago), licensed MIT. It adds 157 tokens to every session and 5,684 once invoked, about $0.0006 per session on Opus 5.5. 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 2026-09-04.

Related

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