Agent skill

Ctx Verify

by stevesolun in stevesolun/ctx

Select proportional validation for changes or reviews in the ctx repository.

MITAuto-check passed

Install Ctx Verify

skills CLI
$ npx skills add stevesolun/ctx --skill ctx-verify -a claude-code

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

GitHub CLI
$ gh skill install stevesolun/ctx ctx-verify --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/stevesolun/ctx.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/ctx-verify .claude/skills/ctx-verify && 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
ctx-verify
GitHub stars
588
Token cost
~658 tokens
SKILL.md length
295 words
Files
1
Skills in repo
26
Repo updated
First seen
Licence
MIT

At a glance

Select proportional validation for changes or reviews in the ctx repository.

  • Works in 7 steps: Inspect the requested behavior and… → Run the smallest focused tests or… → Escalate evidence in proportion to risk → …
  • Pure questions with no changed artifact
  • Calls python

What it does

Ctx Verify is an agent skill from stevesolun/ctx. Select proportional validation for changes or reviews in the ctx repository. Use before handing off material code, workflow, migration, documentation, security, packaging, or release changes; before a PR; or when asked whether a change is adequately tested. Do not use for pure questions with no changed artifact.

Its SKILL.md is about 660 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: CTX Fit finds the cheapest AI coding setup that reliably works on your repository, then applies the winner as a reviewable change. The licence is MIT.

When your agent uses it

  • Pure questions with no changed artifact

Example prompts

  • “/ctx-verify”

Requirements

  • Python 3

Workflow steps

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

  1. Inspect the requested behavior and changed surface. Read only the relevant
  2. Run the smallest focused tests or deterministic checks that exercise the
  3. Escalate evidence in proportion to risk
  4. Treat the fast gate as committed-history evidence. When the working tree is
  5. If a gate cannot find its trusted pytest, Ruff, and mypy environment, report
  6. Use an independent validator only when semantic risk remains after
  7. Report each check, its result, and any omitted or unavailable evidence.

What it can do on your machine

Read from SKILL.md and the folder at commit 11b582a. 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:

    • python

    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.

Context cost

Ctx Verify loads about 658 tokens when it runs. Until then it costs about 81 tokens; SKILL.md has 295 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~81
When it runs · the whole SKILL.md, loaded when a task matches
~658

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 stevesolun/ctx at commit 11b582a, republished under its MIT licence (© stevesolun). 295 words, ~658 tokens.

Download SKILL.mdSave it as .claude/skills/ctx-verify/SKILL.md (or your agent's skills folder).
name
ctx-verify
description
Select proportional validation for changes or reviews in the ctx repository. Use before handing off material code, workflow, migration, documentation, security, packaging, or release changes; before a PR; or when asked whether a change is adequately tested. Do not use for pure questions with no changed artifact.

Verify ctx changes

  1. Inspect the requested behavior and changed surface. Read only the relevant section of CONTRIBUTING.md before selecting checks.
  2. Run the smallest focused tests or deterministic checks that exercise the changed behavior first.
  3. Escalate evidence in proportion to risk:
    • Small, localized change: focused tests, schemas, or diff checks.
    • Material repository change: scripts/no_mistakes_run.sh fast.
    • PR-level, contract, workflow, migration, packaging, security, or release change: run the fast gate, then python scripts/ci_preflight.py --profile pr.
    • Documentation navigation or linked public-asset change: follow the tracker contract in CONTRIBUTING.md; do not require tracker changes for ordinary prose-only edits.
    • Windows-sensitive change: follow the native-CI contract in CONTRIBUTING.md; local checks do not replace required Windows evidence.
  4. Treat the fast gate as committed-history evidence. When the working tree is dirty, pair it with focused checks against the actual uncommitted changes.
  5. If a gate cannot find its trusted pytest, Ruff, and mypy environment, report the environment failure. Do not silently install dependencies or weaken the trust check.
  6. Use an independent validator only when semantic risk remains after deterministic checks, especially for material security, migration, or release work.
  7. Report each check, its result, and any omitted or unavailable evidence.

Rubric

Mark each applicable criterion pass, fail, or not verified:

  • Intent: The artifact satisfies the request without unrelated scope.
  • Behavior: Fresh evidence covers the changed success path and relevant failure or regression paths.
  • Static integrity: Applicable lint, formatting, and type checks pass.
  • Repository contracts: Migration, changed-file, documentation, packaging, and platform requirements remain satisfied where relevant.
  • Evidence quality: Results apply to the actual changed surface and are not stale or inapplicable.
  • Handoff: Skipped checks and residual risks are stated plainly.

Do not claim completion while an applicable criterion fails. Treat missing required evidence as not verified, not as a pass.

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

Files

Just SKILL.md in .claude/skills/ctx-verify of stevesolun/ctx.

Open the folder on GitHubat commit 11b582a

Compare with similar skills

Ctx Verify 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.

Ctx Verify compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Ctx Verify this skillstevesolun/ctx588—~658Automated safety check: PassMIT
Select Namethedaviddias/Front-End-Checklist74k—~451Automated safety check: PassMIT
Ctxctxrs/ctx1.2k—~1.5kAutomated safety check: PassApache-2.0
Engine Selectionsickn33/agentic-awesome-skills47k1 repos~1.2kAutomated safety check: PassMIT
Ctx Statsmksglu/context-mode26k—~290Automated safety check: PassCustom licence
Technology Selectiondotnet/skills5.6k2 repos~2.1kAutomated safety check: PassMIT

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Questions about Ctx Verify

What does Ctx Verify do?

Select proportional validation for changes or reviews in the ctx repository. Ctx Verify is an agent skill from stevesolun/ctx. Select proportional validation for changes or reviews in the ctx repository.

When should I use Ctx Verify?

Ctx Verify fits situations like: pure questions with no changed artifact.

How do I install Ctx Verify in Claude Code?

Run `npx skills add stevesolun/ctx --skill ctx-verify -a claude-code`. Or copy the skill folder (.claude/skills/ctx-verify in stevesolun/ctx) into .claude/skills/ctx-verify in your project. Claude Code loads it when a task matches its description.

How do I install Ctx Verify in Codex?

Run `npx skills add stevesolun/ctx --skill ctx-verify -a codex`. Or copy the skill folder (.claude/skills/ctx-verify in stevesolun/ctx) into .agents/skills/ctx-verify in your project. Codex loads it when a task matches its description.

Can I use Ctx Verify 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 stevesolun/ctx --skill ctx-verify -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ctx-verify, .gemini/skills/ctx-verify, .github/skills/ctx-verify and .opencode/skills/ctx-verify in your project.

What does Ctx Verify need to run?

Going by SKILL.md and its folder, Ctx Verify needs the command-line tools its instructions call (python). Our summary lists: Python 3.

Does Ctx Verify 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 Ctx Verify 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 Ctx Verify use?

Ctx Verify 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 Ctx Verify use?

About 658 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Ctx Verify?

Skills that share tags, products or a category with Ctx Verify: Select Name (thedaviddias/Front-End-Checklist, 74k stars), Ctx (ctxrs/ctx, 1.2k stars), Engine Selection (sickn33/agentic-awesome-skills, 47k stars) and Ctx Stats (mksglu/context-mode, 26k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Ctx Verify?

stevesolun (a GitHub user) maintains it in stevesolun/ctx, which has 588 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on October 4, 2026.

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