Grounded Docs is an MCP server that builds a local, version-aware index of documentation from websites, code repositories, package registries, local files, and archives for AI coding assistants. It helps assistants retrieve current project-specific documentation and supports MCP-compatible clients such as Claude, Cline, and similar tools. The catalogue add-ons provide skills, commands, and instructions for working with this documentation server.
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.
npx skills add arabold/docs-mcp-server --skill docs-managegit clone --depth 1 https://github.com/arabold/docs-mcp-serverWrote 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.
[](https://agentmods.dev/skills/arabold/docs-mcp-server/docs-manage)<a href="https://agentmods.dev/skills/arabold/docs-mcp-server/docs-manage"><img src="https://agentmods.dev/badge/skills/arabold/docs-mcp-server/docs-manage/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.
<a href="https://agentmods.dev/skills/arabold/docs-mcp-server/docs-manage"><img src="https://agentmods.dev/badge/skills/arabold/docs-mcp-server/docs-manage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 14 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 8 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 32 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 59 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 62 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 65 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 68 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 72 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 84 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 98 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 109 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 122 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 141 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 144 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 147 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00068 | $0.02033 |
| Opus 5.5 | $0.00027 | $0.00813 |
| Sonnet 5.5 | $0.00014 | $0.00407 |
| Haiku 4.5 | $0.00007 | $0.00203 |
Grade A, and why
docs-manage 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 200 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Docs Manage
Index, refresh and remove library documentation in the local Grounded Docs store. These commands change the index and print a plain-text result on stdout.
When to use
- A library is not indexed yet and you need its docs for search.
- Indexed documentation may be stale and you want the changed pages.
- You want to remove a library version from the index.
- The store file is still large after removals and you want to shrink it.
Commands
Every command accepts these flags:
| Flag | Description |
|---|---|
--server-url <url> |
Use a remote worker (e.g. http://localhost:8080/api) instead of the local store |
--quiet |
Log errors only |
--verbose |
Log debug output |
scrape
Download and index documentation from a URL or a local folder. The command returns when indexing has finished.
npx @arabold/docs-mcp-server@latest scrape <library> <url> [options]
| Flag | Alias | Default | Description |
|---|---|---|---|
--version <ver> |
-v |
unversioned | Version label to index under |
--max-pages <n> |
-p |
1000 |
Maximum pages to index |
--max-depth <n> |
-d |
3 |
Maximum link depth from the start URL |
--max-concurrency <n> |
-c |
3 |
Pages fetched at the same time |
--scope subpages|hostname|domain |
subpages |
Crawl boundary: the start URL's path, its host name, or its domain with subdomains | |
--include-pattern <pattern> |
Only crawl matching URLs (glob, or regex as /pattern/; repeatable) |
||
--exclude-pattern <pattern> |
Skip matching URLs (repeatable; wins over include) | ||
--scrape-mode auto|fetch|playwright |
auto |
auto and playwright render HTML in headless Chromium; fetch skips JavaScript |
|
--header "Name: Value" |
Custom HTTP header (repeatable) | ||
--no-follow-redirects |
follows redirects | Treat HTTP redirects as errors | |
--no-ignore-errors |
ignores errors | Fail the scrape when a page fails instead of skipping it | |
--preserve-hashes |
false |
Keep #/route fragments, for documentation sites routed by URL hash |
|
--replace |
false |
Rebuild the version if it already exists | |
--no-clean |
Add documents to an existing version instead of failing | ||
--embedding-model <model> |
Embedding model, e.g. openai:text-embedding-3-small |
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.
- today Changed · -3 lines · +1 tokens per session 17991bdc0bc1
- 7d ago Changed · +5 lines aedcb317c477
- 29d ago Changed · +36 lines · +14 tokens per session d2b581c264d5
- 1mo ago First seen · 162 lines · 53 tokens per session scan A 5ec8cf1d9777
docs-manage is a skill published in the GitHub repository arabold/docs-mcp-server (1,816 stars, last pushed today), licensed MIT. It adds 68 tokens to every session and 2,033 once invoked, about $0.0003 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 2026-08-30.
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