json-schema-lookup

90 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By sammcj/agentic-coding (GitHub) · coding · 171 stars · scanned at commit 09c80d3

Guidelines for querying schemastore.org. Use when you need to validate or discover options for config files relating to popular open source projects.

Works with any agent that supports SKILL.md skills.

What this skill can do

Sends data to these websites: www.schemastore.org

The author does not mention this.

Found in 9 places.

Skills/json-schema-lookup/SKILL.md, line 27curl -s https://www.schemastore.org/api/json/catalog.json | jq '.schemas[] | select(.name | test("tsconfig"; "i")) | {name, url, fileMatch}'
Skills/json-schema-lookup/SKILL.md, line 30curl -s https://www.schemastore.org/api/json/catalog.json | jq '.schemas[] | select(.fileMatch[]? | test("package\\.json")) | {name, url}'
Skills/json-schema-lookup/SKILL.md, line 39curl -s SCHEMA_URL | jq '.properties | keys'

Show 6 more

Skills/json-schema-lookup/SKILL.md, line 42curl -s SCHEMA_URL | jq '.properties.FIELD_NAME'
Skills/json-schema-lookup/SKILL.md, line 45curl -s SCHEMA_URL | jq '.definitions.DEF_NAME.properties'
Skills/json-schema-lookup/SKILL.md, line 48curl -s SCHEMA_URL | jq .
Skills/json-schema-lookup/SKILL.md, line 55curl -s SCHEMA_URL | jq '.properties.FIELD.enum'
Skills/json-schema-lookup/SKILL.md, line 58curl -s SCHEMA_URL | jq '.definitions.compilerOptionsDefinition.properties.compilerOptions.properties | keys'
Skills/json-schema-lookup/SKILL.md, line 61curl -s SCHEMA_URL | jq '.required'

Runs commands on your computer

The author does not mention this. Expected for a coding skill.

Found in 3 places.

Skills/json-schema-lookup/SKILL.md, line 27curl -s https://www.schemastore.org/api/json/catalog.json | jq '.schemas[] | select(.name | test("tsconfig"; "i")) | {name, url, fileMatch}'
Skills/json-schema-lookup/SKILL.md, line 39curl -s SCHEMA_URL | jq '.properties | keys'
Skills/json-schema-lookup/SKILL.md, line 55curl -s SCHEMA_URL | jq '.properties.FIELD.enum'

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'json-schema-lookup' ] || [ -L ~/.agents/skills/'json-schema-lookup' ]; then echo 'A skill folder named json-schema-lookup already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/sammcj/agentic-coding' "$d" && git -C "$d" checkout --quiet '09c80d352bc3a099bf654f433edffdb30af021a7' -- 'Skills/json-schema-lookup' && mkdir -p ~/.agents/skills && cp -R "$d"/'Skills/json-schema-lookup' ~/.agents/skills/'json-schema-lookup' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'json-schema-lookup' ~/.claude/skills/'json-schema-lookup' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-13	`09c80d3`	90