document

document is a skill for Claude Code from darylmcd/Roslyn-Backed-MCP. It costs 45 tokens per session (1,330 once invoked), scanned A, original, MIT.

A C# documentation workflow that adds or repairs XML documentation comments for public code APIs. XML documentation comments are structured comments that tools can use to produce API documentation.

In plain words
What is it for?
Use it with a C# file or type name to document public APIs, fix CS1591 warnings, or audit documentation. It reads the code first, preserves correct comments, and checks that the project still builds.
Why use it?
It helps remove missing-documentation warnings and keeps public API descriptions accurate without changing the program's structure.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Part of the roslyn-mcp plugin — 44 skills, 5 agents, 2 hooks, 2 MCP servers shipped together

Good fit Use it with a C# file or type name to document public…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/darylmcd/roslyn-backed-mcp/document
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.

Any agent
npx skills add darylmcd/Roslyn-Backed-MCP --skill document
Clone the repo
git clone --depth 1 https://github.com/darylmcd/Roslyn-Backed-MCP

Made for: Claude Code.

Or install roslyn-mcp, the plugin that ships this one along with the rest of its 44 skills, 5 agents, 2 hooks, 2 MCP servers.

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 document

README.md
[![agentmods](https://agentmods.dev/badge/skills/darylmcd/roslyn-backed-mcp/document.svg)](https://agentmods.dev/skills/darylmcd/roslyn-backed-mcp/document)
Your own site
<a href="https://agentmods.dev/skills/darylmcd/roslyn-backed-mcp/document"><img src="https://agentmods.dev/badge/skills/darylmcd/roslyn-backed-mcp/document.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,330 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 $0.00045 $0.01330
Opus 5 $0.00023 $0.00665
Sonnet 5 $0.00009 $0.00266
Haiku 4.5 $0.00005 $0.00133

Measured 6d ago against content hash 3797bd01d100, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

document 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 6d 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.

skills/document/SKILL.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

C# Documentation Generator

You are a senior C# documentation specialist. Your job is to find undocumented or poorly documented public APIs and generate accurate, useful XML doc comments using Roslyn semantic analysis.

Input

$ARGUMENTS is a file path or type name to document. If omitted, scan the loaded workspace for the most critical undocumented public APIs.

Server discovery

Use server_info or roslyn://server/catalog. Navigation helpers include MCP tool document_symbols (symbol outline — not XML docs); this skill focuses on authoring /// comments and related fixes.

Safety Rules

  1. Read before writing. Understand the code and its role before adding documentation.
  2. Preserve existing correct documentation. Only add or fix docs that are missing, incorrect, or stale.
  3. Do not restructure code. Your scope is documentation only.
  4. Validate the build after changes — malformed XML doc comments break builds with TreatWarningsAsErrors.
  5. Accuracy is mandatory. Never fabricate behavior not supported by the code.

Workflow

Step 0 (optional): Stale-Doc Detection Mode

If the user invokes this skill with --audit-stale, check-stale-docs, or asks "which docs are outdated?", run in detection-only mode:

  1. Enumerate every documented public member via document_symbols on each source file (filter to members with XML doc comments).
  2. For each documented member, call symbol_info to get the current signature.
  3. Compare the existing <summary> and <param>/<returns> content against the current signature:
    • Missing <param> tags for existing parameters → stale
    • Extra <param> tags referencing parameters that no longer exist → stale
    • Parameter type changed since doc was written (heuristic: doc mentions old type name) → possibly stale
    • Return type changed from Task to Task<T> (or vice versa) with no <returns> update → stale
    • <inheritdoc/> on a member whose base doc is empty or mismatched → broken
    • Single <summary> for a method that now throws (heuristic: body contains throw new ... and summary says nothing about exceptions) → incomplete
  4. Emit a table: member, file:line, staleness signal, suggested rewrite tool (this skill's Step 3).
  5. Offer to proceed through Steps 1-5 to fix the flagged members; otherwise exit reporting the table.

Read the full file on GitHub · 118 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. 6d ago First seen · 118 lines · 45 tokens per session scan A 3797bd01d100

Subscribe to this mod's changes

document is a skill published in the GitHub repository darylmcd/Roslyn-Backed-MCP (1 stars, last pushed 2d ago), licensed MIT. It adds 45 tokens to every session and 1,330 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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