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Agent skill

Heif Icc QA

by InternationalColorConsortium in InternationalColorConsortium/iccDEV

Build and test iccHeifDump against the pinned Nokia HEIF reader and the tracked valid, malformed, and overflow ICC carrier corpus.

BSD-3-ClauseAuto-check passedDevelopment

Install Heif Icc QA

skills CLI
$ npx skills add InternationalColorConsortium/iccDEV --skill heif-icc-qa -a claude-code

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

GitHub CLI
$ gh skill install InternationalColorConsortium/iccDEV heif-icc-qa --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/InternationalColorConsortium/iccDEV.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/heif-icc-qa .claude/skills/heif-icc-qa && 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
heif-icc-qa
GitHub stars
183
Token cost
~438 tokens
SKILL.md length
211 words
Files
1
Skills in repo
23
Repo updated
First seen
Licence
BSD-3-Clause

At a glance

Build and test iccHeifDump against the pinned Nokia HEIF reader and the tracked valid, malformed, and overflow ICC carrier corpus.

  • Works in 7 steps: Check repository status and keep… → Read .github/ci/tooling/heif/Readme.md… → Apply every tracked patch under… → …
  • Development work in your project
  • Calls git

What it does

Heif Icc QA is an agent skill from InternationalColorConsortium/iccDEV. Build and test iccHeifDump against the pinned Nokia HEIF reader and the tracked valid, malformed, and overflow ICC carrier corpus.

Its SKILL.md is about 440 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 Development. It works with GitHub. The repository describes itself as: iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. The licence is BSD-3-Clause.

When your agent uses it

  • Development work in your project

Example prompts

  • “/heif-icc-qa”

Workflow steps

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

  1. Check repository status and keep generated clones, builds, logs, and
  2. Read .github/ci/tooling/heif/Readme.md and use its pinned upstream commit.
  3. Apply every tracked patch under .github/ci/tooling/heif/patchs/ with
  4. Build iccHeifDump through .github/ci/tooling/heif/qa/CMakeLists.txt.
  5. Run ctest -N --no-tests=error, require exactly the documented HEIF test,
  6. Treat exit values 128 and above, sanitizer diagnostics, missing fixtures,
  7. Report the iccDEV revision, Nokia revision, compiler/sanitizer envelope,

What it can do on your machine

Read from SKILL.md and the folder at commit 3c2425d. 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

Heif Icc QA loads about 438 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 211 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~36
When it runs · the whole SKILL.md, loaded when a task matches
~438

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 InternationalColorConsortium/iccDEV at commit 3c2425d, republished under its BSD-3-Clause licence (© InternationalColorConsortium). 211 words, ~438 tokens.

Download SKILL.mdSave it as .claude/skills/heif-icc-qa/SKILL.md (or your agent's skills folder).
name
heif-icc-qa
description
Build and test iccHeifDump against the pinned Nokia HEIF reader and the tracked valid, malformed, and overflow ICC carrier corpus.

HEIF ICC Carrier QA

Use this skill for iccHeifDump, HEIF/AVIF colr carrier fixtures, the pinned Nokia HEIF integration, or issue #2647 follow-up.

Workflow

  1. Check repository status and keep generated clones, builds, logs, and extracted profiles outside the worktree.
  2. Read .github/ci/tooling/heif/Readme.md and use its pinned upstream commit. Homebrew libheif is not API-compatible with this tool.
  3. Apply every tracked patch under .github/ci/tooling/heif/patchs/ with git apply --check before configuring the wrapper project.
  4. Build iccHeifDump through .github/ci/tooling/heif/qa/CMakeLists.txt.
  5. Run ctest -N --no-tests=error, require exactly the documented HEIF test, then run iccdev.heif-carrier-qa with ASan+UBSan enabled. Use the manually dispatched Nokia HEIF ICC carrier smoke workflow for hosted validation; do not add this external build to the general iccDEV pull-request or tool-test workflows.
  6. Treat exit values 128 and above, sanitizer diagnostics, missing fixtures, hash drift, or a missing CTest registration as failures. Exit 1-127 is a graceful tool failure only when the matrix expects it.
  7. Report the iccDEV revision, Nokia revision, compiler/sanitizer envelope, carrier matrix result, extraction hash, known third-party warnings, and all local changes. New compiler warnings are failures in the dedicated smoke.

When changing the upstream pin or patch stack, test both git apply --check and the complete sanitizer corpus. Do not silently regenerate or replace the binary fixtures.

© InternationalColorConsortium, 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 .github/skills/heif-icc-qa of InternationalColorConsortium/iccDEV.

Open the folder on GitHubat commit 3c2425d

Compare with similar skills

Heif Icc QA 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.

Heif Icc QA compared with similar skills
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Heif Icc QA this skillInternationalColorConsortium/iccDEV183—~438Automated safety check: PassBSD-3-Clause
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Greplooponyx-dot-app/onyx32k4 repos~3.3kAutomated safety check: PassMIT
Check PRonyx-dot-app/onyx32k2 repos~2.3kAutomated safety check: PassMIT
Setup Matt Pocock Skillsbestofjs/bestofjs3.1k20 repos~1.7kAutomated safety check: PassMIT
Contributor-First PR MergeHKUDS/OpenHarness16k1 repos~847Automated safety check: PassMIT

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Works with

Categories

Questions about Heif Icc QA

What does Heif Icc QA do?

Build and test iccHeifDump against the pinned Nokia HEIF reader and the tracked valid, malformed, and overflow ICC carrier corpus. Heif Icc QA is an agent skill from InternationalColorConsortium/iccDEV. Build and test iccHeifDump against the pinned Nokia HEIF reader and the tracked valid, malformed, and overflow ICC carrier corpus.

When should I use Heif Icc QA?

Heif Icc QA fits situations like: development work in your project.

How do I install Heif Icc QA in Claude Code?

Run `npx skills add InternationalColorConsortium/iccDEV --skill heif-icc-qa -a claude-code`. Or copy the skill folder (.github/skills/heif-icc-qa in InternationalColorConsortium/iccDEV) into .claude/skills/heif-icc-qa in your project. Claude Code loads it when a task matches its description.

How do I install Heif Icc QA in Codex?

Run `npx skills add InternationalColorConsortium/iccDEV --skill heif-icc-qa -a codex`. Or copy the skill folder (.github/skills/heif-icc-qa in InternationalColorConsortium/iccDEV) into .agents/skills/heif-icc-qa in your project. Codex loads it when a task matches its description.

Can I use Heif Icc QA 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 InternationalColorConsortium/iccDEV --skill heif-icc-qa -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/heif-icc-qa, .gemini/skills/heif-icc-qa, .github/skills/heif-icc-qa and .opencode/skills/heif-icc-qa in your project.

What does Heif Icc QA need to run?

Going by SKILL.md and its folder, Heif Icc QA needs the command-line tools its instructions call (git).

Does Heif Icc QA 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 Heif Icc QA 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 Heif Icc QA use?

Heif Icc QA 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 Heif Icc QA use?

About 438 tokens (SKILL.md is roughly 1.8k 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 Heif Icc QA?

Skills that share tags, products or a category with Heif Icc QA: PR Babysitter (openinterpreter/openinterpreter, 69k stars), Greploop (onyx-dot-app/onyx, 32k stars), Check PR (onyx-dot-app/onyx, 32k stars) and Setup Matt Pocock Skills (bestofjs/bestofjs, 3.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Heif Icc QA?

InternationalColorConsortium (a GitHub organization) maintains it in InternationalColorConsortium/iccDEV, which has 183 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on October 9, 2026.

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