Agent skill

Update Expected Output

by runtimeverification in runtimeverification/kontrol

Update expected output golden files for integration test suites.

BSD-3-ClauseAuto-check passedTesting & QA

Install Update Expected Output

skills CLI
$ npx skills add runtimeverification/kontrol --skill update-expected-output -a claude-code

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

GitHub CLI
$ gh skill install runtimeverification/kontrol update-expected-output --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/runtimeverification/kontrol.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/update-expected-output .claude/skills/update-expected-output && 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
update-expected-output
GitHub stars
125
Token cost
~275 tokens
SKILL.md length
88 words
Files
1
Skills in repo
3
Repo updated
First seen
Licence
BSD-3-Clause

At a glance

Update expected output golden files for integration test suites.

  • Tasks that involve Integration testing
  • Calls git

What it does

Update Expected Output is an agent skill from runtimeverification/kontrol. Update expected output golden files for integration test suites. Use after changes to K semantics or proof strategies that legitimately alter KCFG output.

Its SKILL.md is about 280 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Integration testing. The licence is BSD-3-Clause.

When your agent uses it

  • Tasks that involve Integration testing

Example prompts

  • “/update-expected-output”

What it can do on your machine

Read from SKILL.md and the folder at commit 1649663. 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:

    • git

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

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    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

Update Expected Output loads about 275 tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 88 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~44
When it runs · the whole SKILL.md, loaded when a task matches
~275

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 runtimeverification/kontrol at commit 1649663, republished under its BSD-3-Clause licence (© runtimeverification). 88 words, ~275 tokens.

Download SKILL.mdSave it as .claude/skills/update-expected-output/SKILL.md (or your agent's skills folder).
name
update-expected-output
description
Update expected output golden files for integration test suites. Use after changes to K semantics or proof strategies that legitimately alter KCFG output.

Update expected output snapshots for integration test suites.

Note: This process can be very lengthy. Running all suites can take 30+ minutes, with the CSE + minimize suite being the slowest. Prefer targeting a specific suite (--foundry, --cse, or --end-to-end) or a single test (-k <filter>) unless a full update is explicitly needed. Always run as a background task to avoid timeouts.

bash
./scripts/update-expected-output [--foundry] [--cse] [--end-to-end] [-k <filter>]

No suite flag runs all three suites in order.

bash
# Single suite
./scripts/update-expected-output --end-to-end

# Single test within a suite
./scripts/update-expected-output --end-to-end -k ComputeCreateAddressTest

# All suites
./scripts/update-expected-output

After the script finishes, run git status to identify which snapshot files were modified, then summarise the changes.

© runtimeverification, BSD-3-Clause. 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/update-expected-output of runtimeverification/kontrol.

Open the folder on GitHubat commit 1649663

Compare with similar skills

Update Expected Output 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.

Update Expected Output compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Update Expected Output this skillruntimeverification/kontrol125—~275Automated safety check: PassBSD-3-Clause
Plugin Testingpolyipseity/obsidian-terminal948—~828Automated safety check: PassAGPL-3.0
Create Modulecartography-cncf/cartography4.1k—~2.5kAutomated safety check: PassApache-2.0
Td Integration Testmarcus/td250—~1.2kAutomated safety check: PassMIT
Integration E2E Testingshinpr/claude-code-workflows690—~3.5kAutomated safety check: PassMIT
JS-in-HTML Testingliaohch3/claude-tap3.3k—~924Automated safety check: PassMIT

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Categories

Questions about Update Expected Output

What does Update Expected Output do?

Update expected output golden files for integration test suites. Update Expected Output is an agent skill from runtimeverification/kontrol. Update expected output golden files for integration test suites.

When should I use Update Expected Output?

Update Expected Output fits situations like: tasks that involve Integration testing.

How do I install Update Expected Output in Claude Code?

Run `npx skills add runtimeverification/kontrol --skill update-expected-output -a claude-code`. Or copy the skill folder (.claude/skills/update-expected-output in runtimeverification/kontrol) into .claude/skills/update-expected-output in your project. Claude Code loads it when a task matches its description.

How do I install Update Expected Output in Codex?

Run `npx skills add runtimeverification/kontrol --skill update-expected-output -a codex`. Or copy the skill folder (.claude/skills/update-expected-output in runtimeverification/kontrol) into .agents/skills/update-expected-output in your project. Codex loads it when a task matches its description.

Can I use Update Expected Output 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 runtimeverification/kontrol --skill update-expected-output -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/update-expected-output, .gemini/skills/update-expected-output, .github/skills/update-expected-output and .opencode/skills/update-expected-output in your project.

What does Update Expected Output need to run?

Going by SKILL.md and its folder, Update Expected Output needs the command-line tools its instructions call (git).

Does Update Expected Output access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Update Expected Output 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 Update Expected Output use?

Update Expected Output is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Update Expected Output use?

About 275 tokens (SKILL.md is roughly 1.1k 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 Update Expected Output?

Skills that share tags, products or a category with Update Expected Output: Plugin Testing (polyipseity/obsidian-terminal, 948 stars), Create Module (cartography-cncf/cartography, 4.1k stars), Td Integration Test (marcus/td, 250 stars) and Integration E2E Testing (shinpr/claude-code-workflows, 690 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Update Expected Output?

runtimeverification (a GitHub organization) maintains it in runtimeverification/kontrol, which has 125 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 5, 2026.

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