Agent skill

Modifying CLI Output Schema

by golemcloud in golemcloud/golem

Adding or modifying Golem CLI StructuredOutput implementations, command-output.schema.json, or DTO-backed output schema generators.

Custom licenceAuto-check passed

Install Modifying CLI Output Schema

skills CLI
$ npx skills add golemcloud/golem --skill modifying-cli-output-schema -a claude-code

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

GitHub CLI
$ gh skill install golemcloud/golem modifying-cli-output-schema --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/golemcloud/golem.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/modifying-cli-output-schema .claude/skills/modifying-cli-output-schema && 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
modifying-cli-output-schema
GitHub stars
1.5k
Token cost
~2.7k tokens
SKILL.md length
1,231 words
Files
1
Skills in repo
289
Repo updated
First seen
Licence
Custom licence

At a glance

Adding or modifying Golem CLI StructuredOutput implementations, command-output.schema.json, or DTO-backed output schema generators.

  • Works in 7 steps: Keep the public $type discriminator… → $type values are semantic output… → Keep machine-readable structured output… → …
  • SKILL.md covers Core Rules, Important Files, Generator Rules and Accepted Generic JSON Leaves, plus 7 more sections
  • Calls cargo and npm

What it does

Modifying CLI Output Schema is an agent skill from golemcloud/golem. Adding or modifying Golem CLI StructuredOutput implementations, command-output.schema.json, or DTO-backed output schema generators.

Its SKILL.md is about 2.7k 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: Golem Cloud is the agent-native platform for building AI agents and distributed applications that never lose state, never duplicate work, and never require you to build…

Example prompts

  • “/modifying-cli-output-schema”

Workflow steps

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

  1. Keep the public $type discriminator model. Every structured output document
  2. $type values are semantic output identifiers. Prefer command-like
  3. Keep machine-readable structured output on stdout and human logs, prompts,
  4. Prefer typed schema definitions over JsonValue. Use generic JSON only when
  5. Match serde's actual serialized shape, not the Rust type shape you expect.
  6. For exact object schemas, set additionalProperties: false and keep
  7. Every top-level output definition listed in x-golem-cli-output-types must

What it can do on your machine

Read from SKILL.md and the folder at commit c6a3029. 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:

    • cargo
    • npm

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

  • Network

    No URLs in SKILL.md. Its commands use npm, 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

Modifying CLI Output Schema loads about 2.7k tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 1,231 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~40
When it runs · the whole SKILL.md, loaded when a task matches
~2.7k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,231 words (~2,724 tokens).

“Use this skill when changing structured output from golem-cli, including:”

— opening of SKILL.md by golemcloud, Custom licence
name
modifying-cli-output-schema

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/modifying-cli-output-schema of golemcloud/golem.

Open the folder on GitHubat commit c6a3029

Compare with similar skills

Modifying CLI Output Schema 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.

Modifying CLI Output Schema compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Modifying CLI Output Schema this skillgolemcloud/golem1.5k—~2.7kAutomated safety check: PassCustom licence
Implementsickn33/agentic-awesome-skills47k5 repos~306Automated safety check: PassMIT
Implementcodewhale-hq/Codewhale41k—~190Automated safety check: PassMIT
Golem Create GolemThinkR-open/golem946—~473Automated safety check: PassCustom licence
Incremental Implementationaddyosmani/agent-skills103k1 repos~2.3kAutomated safety check: PassMIT
Implementbestofjs/bestofjs3.1k18 repos~109Automated safety check: PassMIT

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Questions about Modifying CLI Output Schema

What does Modifying CLI Output Schema do?

Adding or modifying Golem CLI StructuredOutput implementations, command-output.schema.json, or DTO-backed output schema generators. Modifying CLI Output Schema is an agent skill from golemcloud/golem.json, or DTO-backed output schema generators.

How do I install Modifying CLI Output Schema in Claude Code?

Run `npx skills add golemcloud/golem --skill modifying-cli-output-schema -a claude-code`. Or copy the skill folder (.agents/skills/modifying-cli-output-schema in golemcloud/golem) into .claude/skills/modifying-cli-output-schema in your project. Claude Code loads it when a task matches its description.

How do I install Modifying CLI Output Schema in Codex?

Run `npx skills add golemcloud/golem --skill modifying-cli-output-schema -a codex`. Or copy the skill folder (.agents/skills/modifying-cli-output-schema in golemcloud/golem) into .agents/skills/modifying-cli-output-schema in your project. Codex loads it when a task matches its description.

Can I use Modifying CLI Output Schema 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 golemcloud/golem --skill modifying-cli-output-schema -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/modifying-cli-output-schema, .gemini/skills/modifying-cli-output-schema, .github/skills/modifying-cli-output-schema and .opencode/skills/modifying-cli-output-schema in your project.

What does Modifying CLI Output Schema need to run?

Going by SKILL.md and its folder, Modifying CLI Output Schema needs the command-line tools its instructions call (cargo and npm).

Does Modifying CLI Output Schema access the network?

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

Is Modifying CLI Output Schema 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 Modifying CLI Output Schema use?

Modifying CLI Output Schema has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Modifying CLI Output Schema use?

About 2.7k tokens (SKILL.md is roughly 11k 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 Modifying CLI Output Schema?

Skills that share tags, products or a category with Modifying CLI Output Schema: Implement (sickn33/agentic-awesome-skills, 47k stars), Implement (codewhale-hq/Codewhale, 41k stars), Golem Create Golem (ThinkR-open/golem, 946 stars) and Incremental Implementation (addyosmani/agent-skills, 103k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Modifying CLI Output Schema?

golemcloud (a GitHub organization) maintains it in golemcloud/golem, which has 1,507 GitHub stars. The repository holds 289 skills in this directory. The repository was last updated on October 8, 2026.

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