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Agent skill

Codeql

by managedcode in managedcode/dotnet-skills

Use the open-source CodeQL ecosystem for .NET security analysis.

MITAuto-check passedSecurity

Install Codeql

skills CLI
$ npx skills add managedcode/dotnet-skills --skill codeql -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install managedcode/dotnet-skills codeql --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/catalog/Tools/CodeQL/skills/codeql .claude/skills/codeql && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
codeql
GitHub stars
486
Token cost
~1.1k tokens
SKILL.md length
490 words
Files
5 (incl. references)
Skills in repo
81
Repo updated
First seen
Licence
MIT

At a glance

Use the open-source CodeQL ecosystem for .NET security analysis.

  • Works in 3 steps: Read the nearest AGENTS.md and confirm… → Run this skill's Workflow through the… → Return the Required Result Format with…
  • A repo needs CodeQL query packs
  • SKILL.md covers Trigger On, Value, Do Not Use For and Inputs, plus 8 more sections
  • Calls rg

What it does

Codeql is an agent skill from managedcode/dotnet-skills. Use the open-source CodeQL ecosystem for .NET security analysis. Use when a repo needs CodeQL query packs, CLI-based analysis on open source codebases, or GitHub Action setup with explicit licensing caveats. USE FOR: the repo uses or wants CodeQL for .NET security analysis; GitHub code scanning is part of the CI plan. DO NOT USE FOR: teams that need a tool with no private-repo licensing caveat. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands…

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `manifest.json`, `references/codeql.md` and `references/queries.md`). Compatibility notes: Requires a GitHub-based or CLI-based CodeQL workflow; respects the repo's AGENTS.md commands first.

It sits in Security, covering Static analysis and SAST and CI/CD. It works with .NET and GitHub. The repository describes itself as: Installable .NET skill catalog and CLI for Codex, Claude Code, GitHub Copilot, and Gemini. The licence is MIT.

When your agent uses it

  • A repo needs CodeQL query packs
  • CLI-based analysis on open source codebases
  • GitHub Action setup with explicit licensing caveats
  • : the repo uses

Example prompts

  • “/codeql”

Requirements

  • Compatibility (from SKILL.md): Requires a GitHub-based or CLI-based CodeQL workflow; respects the repo's `AGENTS.md` commands first.

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Read the nearest AGENTS.md and confirm scope and constraints.
  2. Run this skill's Workflow through the Ralph Loop until outcomes are acceptable.
  3. Return the Required Result Format with concrete artifacts and verification evidence.

What it can do on your machine

Read from SKILL.md and the folder at commit 535dd55. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • rg

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Requires a GitHub-based or CLI-based CodeQL workflow; respects the repo's `AGENTS.md` commands first.

    From compatibility in the SKILL.md frontmatter.

Context cost

Codeql loads about 1.1k tokens when it runs, and up to ~4.4k if it reads all its reference files. Until then it costs about 137 tokens; SKILL.md has 490 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~137
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~4.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from managedcode/dotnet-skills at commit 535dd55, republished under its MIT licence (© managedcode). 490 words, ~1,078 tokens.

Download SKILL.mdSave it as .claude/skills/codeql/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
codeql
description
Use the open-source CodeQL ecosystem for .NET security analysis. Use when a repo needs CodeQL query packs, CLI-based analysis on open source codebases, or GitHub Action setup with explicit licensing caveats. USE FOR: the repo uses or wants CodeQL for .NET security analysis; GitHub code scanning is part of the CI plan. DO NOT USE FOR: teams that need a tool with no private-repo licensing caveat. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made.
compatibility
Requires a GitHub-based or CLI-based CodeQL workflow; respects the repo's `AGENTS.md` commands first.

CodeQL for .NET

Trigger On

  • the repo uses or wants CodeQL for .NET security analysis
  • GitHub code scanning is part of the CI plan

Value

  • produce a concrete project delta: code, docs, config, tests, CI, or review artifact
  • reduce ambiguity through explicit planning, verification, and final validation skills
  • leave reusable project context so future tasks are faster and safer

Do Not Use For

  • teams that need a tool with no private-repo licensing caveat

Inputs

  • the nearest AGENTS.md
  • hosting model: open-source repo, private repo, or manual CLI workflow
  • current GitHub Actions workflow

Quick Start

  1. Read the nearest AGENTS.md and confirm scope and constraints.
  2. Run this skill's Workflow through the Ralph Loop until outcomes are acceptable.
  3. Return the Required Result Format with concrete artifacts and verification evidence.

Workflow

  1. Treat CodeQL as a security-analysis tool, not as a style checker.
  2. Make the licensing and hosting model explicit before proposing it as the default gate.
  3. Prefer manual build mode for compiled .NET projects when precision matters.

Bootstrap When Missing

If CodeQL is not configured yet:

  1. Detect current state:
    • rg -n "codeql-action|security-events|CodeQL" .github/workflows
    • command -v codeql
  2. Prefer CI-first setup for repository scanning using github/codeql-action/init and github/codeql-action/analyze.
  3. Configure explicit .NET build mode in workflow (manual when precision matters).
  4. Add local CLI usage only when the task requires local query work.
  5. Run the workflow or local analyze path and return status: configured or status: improved.
  6. If licensing or hosting constraints reject CodeQL for this repo, return status: not_applicable with caveat documented.

Deliver

  • explicit CodeQL setup or an explicit rejection with caveat documented
  • reproducible CI or local commands for running CodeQL in this repo

Validate

  • the chosen CodeQL path is allowed for the repo type
  • build mode is documented and reproducible
Show full SKILL.md (195 more words)Show less

Ralph Loop

Use the Ralph Loop for every task, including docs, architecture, testing, and tooling work.

  1. Plan first (mandatory):
    • analyze current state
    • define target outcome, constraints, and risks
    • write a detailed execution plan
    • list final validation skills to run at the end, with order and reason
  2. Execute one planned step and produce a concrete delta.
  3. Review the result and capture findings with actionable next fixes.
  4. Apply fixes in small batches and rerun the relevant checks or review steps.
  5. Update the plan after each iteration.
  6. Repeat until outcomes are acceptable or only explicit exceptions remain.
  7. If a dependency is missing, bootstrap it or return status: not_applicable with explicit reason and fallback path.
Required Result Format
  • status: complete | clean | improved | configured | not_applicable | blocked
  • plan: concise plan and current iteration step
  • actions_taken: concrete changes made
  • validation_skills: final skills run, or skipped with reasons
  • verification: commands, checks, or review evidence summary
  • remaining: top unresolved items or none

For setup-only requests with no execution, return status: configured and exact next commands.

Load References

Example Requests

  • "Set up CodeQL for this public .NET repo."
  • "Explain the CodeQL caveat for private repos."

© managedcode, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files (references) in catalog/Tools/CodeQL/skills/codeql of managedcode/dotnet-skills.

  • SKILL.md
  • manifest.json
  • references/codeql.md
  • references/queries.md
  • references/workflow.md

Open the folder on GitHubat commit 535dd55

Compare with similar skills

Codeql next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Codeql compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codeql this skillmanagedcode/dotnet-skills486—~1.1kAutomated safety check: PassMIT
Mcaf Dotnet Codeqlmanagedcode/Storage138—~977Automated safety check: PassMIT
Agentic GitHub Actions Auditortrailofbits/skills7.4k6 repos~5.4kAutomated safety check: NotesCC-BY-SA-4.0
Codeqlgithub/awesome-copilot40k1 repos~3.4kAutomated safety check: PassMIT
Integrating Sast Into GitHub Actions Pipelinemukul975/Anthropic-Cybersecurity-Skills34k—~3.1kAutomated safety check: PassApache-2.0
Pipeline Security Gatesrevfactory/harness-1001.3k—~1.5kAutomated safety check: PassApache-2.0

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  • Mcaf Dotnet Codeql

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    138 GitHub stars~977 tokensUpdated today
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  • Agentic GitHub Actions Auditor

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  • Codeql

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  • Integrating Sast Into GitHub Actions Pipeline

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Works with

Categories

Questions about Codeql

What does Codeql do?

Use the open-source CodeQL ecosystem for .NET security analysis. Codeql is an agent skill from managedcode/dotnet-skills.NET security analysis.

When should I use Codeql?

Codeql fits situations like: A repo needs CodeQL query packs; CLI-based analysis on open source codebases; GitHub Action setup with explicit licensing caveats; : the repo uses.

How do I install Codeql in Claude Code?

Run `npx skills add managedcode/dotnet-skills --skill codeql -a claude-code`. Or copy the skill folder (catalog/Tools/CodeQL/skills/codeql in managedcode/dotnet-skills) into .claude/skills/codeql in your project. Claude Code loads it when a task matches its description.

How do I install Codeql in Codex?

Run `npx skills add managedcode/dotnet-skills --skill codeql -a codex`. Or copy the skill folder (catalog/Tools/CodeQL/skills/codeql in managedcode/dotnet-skills) into .agents/skills/codeql in your project. Codex loads it when a task matches its description.

Can I use Codeql in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add managedcode/dotnet-skills --skill codeql -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codeql, .gemini/skills/codeql, .github/skills/codeql and .opencode/skills/codeql in your project.

What does Codeql need to run?

Going by SKILL.md and its folder, Codeql needs the command-line tools its instructions call (rg). Compatibility (from SKILL.md): Requires a GitHub-based or CLI-based CodeQL workflow; respects the repo's `AGENTS.md` commands first..

Does Codeql access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Codeql safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Codeql use?

Codeql is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Codeql use?

About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.3k tokens, read only when the agent opens those files.

What are the alternatives to Codeql?

Skills that share tags, products or a category with Codeql: Mcaf Dotnet Codeql (managedcode/Storage, 138 stars), Agentic GitHub Actions Auditor (trailofbits/skills, 7.4k stars), Codeql (github/awesome-copilot, 40k stars) and Integrating Sast Into GitHub Actions Pipeline (mukul975/Anthropic-Cybersecurity-Skills, 34k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codeql?

managedcode (a GitHub organization) maintains it in managedcode/dotnet-skills, which has 486 GitHub stars. The repository holds 81 skills in this directory. The repository was last updated on October 7, 2026.

Source: managedcode/dotnet-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.