hsb-app

From the files and frontmatter at commit 40af08d. This is how much a skill can do, not whether it is risky.

• Runs shell commands

  Its instructions or files give the agent commands to run on your computer.

• Reaches the network

  It sends or fetches data over the internet, for example with curl, an HTTP library or a package install.

• Names web addresses

  It mentions outside web addresses the agent may visit. We list them but don't follow them.

  Outside links we did not follow

• Pre-approves tools

  Its allowed-tools field lists tools the agent may use without asking you first, in agents that honour it.

  SKILL.md:19 (opens in a new tab)

Pattern check: 2 items to review · commit 40af08d · 3 Nov 2026

• R34 · HighBroad tools pre-approved in allowed-tools

  SKILL.md:19 (opens in a new tab)

  allowed-tools: Read,Write,Edit,MultiEdit,Grep,Glob,Bash

• R24 · HighText aimed at reviewers or scanners

  BENCHMARK.md:5 (opens in a new tab)

  …Eval results for the skill. The goal is to document whether the skill is safe, discoverable, effective, and useful for agents before it is published for broader workflow use.

We checked every text file in this skill, at commit 40af08d on 3 Nov 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.

How the check worksReport an incorrect finding

Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.

• Agent Skills specPasses with warnings

  The open format from agentskills.io, held to the strictest version of each rule among the agents we check.

  • Warning

    Fields outside the spec: author, version, tags, tools and disable-model-invocation (read by Claude Code and VS Code). Uploads to the Claude apps and API, and the spec's validator, reject the file; most agents ignore these fields. O1

    Fix: Delete them for a portable skill, or keep them if you only target the agents that read them.

  • Warning

    metadata values should be text; tags (a list) and agents (a list) are not. The spec's validator turns them into text; other readers may not. O4

    Fix: Quote each value, for example version: "1.0".

  • Note

    Anthropic's packaging script leaves these out: evals/. F8

    Fix: Delete them, or list them in .gitignore.

  • Note

    The description doesn't say when to use the skill. D6

    Fix: Add a sentence such as "Use when …" naming the requests or files that should trigger it.

  • Note

    Reference files that SKILL.md doesn't link: BENCHMARK.md and skill-card.md. Anthropic suggests linking every reference file directly from SKILL.md. B4

    Fix: Link each one from SKILL.md and say when to read it.

  • Note

    Reference files over 100 lines with no table of contents at the top: references/phase-details.md (612 lines). B5

    Fix: Add a short list of the sections at the top of each.

• Claude CodePasses

  Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.

  • Note

    Anthropic's packaging script leaves these out: evals/. F8

    Fix: Delete them, or list them in .gitignore.

  • Note

    Claude Code ignores fields it doesn't know: author, version, tags and tools. O1

    Fix: Check the spelling against Claude Code's field list, or delete them.

  • Note

    Reference files that SKILL.md doesn't link: BENCHMARK.md and skill-card.md. Anthropic suggests linking every reference file directly from SKILL.md. B4

    Fix: Link each one from SKILL.md and say when to read it.

  • Note

    Reference files over 100 lines with no table of contents at the top: references/phase-details.md (612 lines). B5

    Fix: Add a short list of the sections at the top of each.

• Claude apps & API uploadFails

  Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.

  • Error

    Upload and packaging fail on fields outside the spec: author, version, tags, tools and disable-model-invocation. O1

    Fix: Delete them, and keep your own data under metadata as text values.

  • Note

    Anthropic's packaging script leaves these out: evals/. F8

    Fix: Delete them, or list them in .gitignore.

  • Note

    The description is 267 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4

    Fix: If the claude.ai upload refuses it, trim the description to 200 characters.

  • Note

    metadata values should be text; tags (a list) and agents (a list) are not. The spec defines metadata as text to text. O4

    Fix: Quote each value, for example version: "1.0".

  • Note

    Reference files that SKILL.md doesn't link: BENCHMARK.md and skill-card.md. Anthropic suggests linking every reference file directly from SKILL.md. B4

    Fix: Link each one from SKILL.md and say when to read it.

  • Note

    Reference files over 100 lines with no table of contents at the top: references/phase-details.md (612 lines). B5

    Fix: Add a short list of the sections at the top of each.

• OpenAI (Codex & API)Passes with warnings

  Codex finds SKILL.md by its exact name and needs a description; OpenAI's Skills API checks the frontmatter against the spec and caps uploads.

  • Warning

    Fields outside the spec: author, version, tags, tools and disable-model-invocation. Codex ignores them; OpenAI doesn't say whether its upload accepts them. O1

    Fix: Delete them, or move your own data under metadata as text values.

  • Warning

    metadata values should be text; tags (a list) and agents (a list) are not. OpenAI's upload follows the spec's text-to-text rule. O4

    Fix: Quote each value, for example version: "1.0".

  • Note

    Anthropic's packaging script leaves these out: evals/. F8

    Fix: Delete them, or list them in .gitignore.

• VS Code & CopilotPasses

  VS Code reads skills one folder below .github/skills, .claude/skills or .agents/skills and falls back to the folder name when the name is missing or differs; GitHub's Copilot docs require the exact name SKILL.md.

  • Note

    Anthropic's packaging script leaves these out: evals/. F8

    Fix: Delete them, or list them in .gitignore.

  • Note

    VS Code ignores fields it doesn't support: author, version, tags and tools. O1

    Fix: Delete them unless another agent you target reads them.

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