docs-viewer

A local documentation browser that shows project files, their contents, and Mermaid diagrams in a web page.

In plain words
What is it for?
Use it to browse documentation while it changes and to view Mermaid diagram code as rendered diagrams.
Why use it?
It gives you a live view of project documentation without repeatedly opening files by hand.

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/sultanassi95/mission-control/docs-viewer
Any agent
npx skills add sultanassi95/mission-control --skill docs-viewer
Clone the repo
git clone --depth 1 https://github.com/sultanassi95/mission-control

Made for: Claude Code, Codex.

Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 11,433 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 2 findings. Scan, not verified.
Origin unknown 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 $0.00113 $0.11433
Opus 5 $0.00056 $0.05717
Sonnet 5 $0.00023 $0.02287
Haiku 4.5 $0.00011 $0.01143

Measured 2d ago against content hash d6b3d7faf4a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

docs-viewer scanned grade A with 2 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

fetch(currentPath + '?_t=' + Date.now()).then(r => {

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

- `docs-viewer-server.cjs` - a Node.js server using only built-ins (http, fs, path, net, os, child_process); on startup it pre-renders all Mermaid code blocks to SVG files in `.docs-viewer-cache/` (via `mmdc`), transform
.claude/skills/docs-viewer/SKILL.md · 874 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 874 lines · 113 tokens per session scan A d6b3d7faf4a0

Subscribe to this mod's changes

docs-viewer is a skill published in the GitHub repository sultanassi95/mission-control (5 stars, last pushed 11d ago), with no licence file. It adds 113 tokens to every session and 11,433 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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