Diff-Driven QA
Skyvern-AI/skyvern
Reads your git diff, decides whether the change needs browser QA, API checks or repo tests, runs that validation and reports pass or fail with evidence.
You are an API mocking expert specializing in realistic mock services for development, testing, and demos.
Install API Testing Observability API Mock
$ npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace api-testing-observability-api-mock --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/api-testing-observability-api-mock .claude/skills/api-testing-observability-api-mock && rm -rf skills-srcUse ~/.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/
Install the "api-testing-observability-api-mock" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/api-testing-observability-api-mock into .claude/skills/api-testing-observability-api-mock/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-testing-observability-api-mock", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/api-testing-observability-api-mockType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace api-testing-observability-api-mock --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sickn33/api-testing-observability-api-mock .agents/skills/api-testing-observability-api-mock && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "api-testing-observability-api-mock" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/api-testing-observability-api-mock into .agents/skills/api-testing-observability-api-mock/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-testing-observability-api-mock", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace api-testing-observability-api-mock --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sickn33/api-testing-observability-api-mock .cursor/skills/api-testing-observability-api-mock && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "api-testing-observability-api-mock" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/api-testing-observability-api-mock into .cursor/skills/api-testing-observability-api-mock/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-testing-observability-api-mock", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aiskillstore/marketplace.git --path skills/sickn33/api-testing-observability-api-mock--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace api-testing-observability-api-mock --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sickn33/api-testing-observability-api-mock .gemini/skills/api-testing-observability-api-mock && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "api-testing-observability-api-mock" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/api-testing-observability-api-mock into .gemini/skills/api-testing-observability-api-mock/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-testing-observability-api-mock", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aiskillstore/marketplace api-testing-observability-api-mockInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sickn33/api-testing-observability-api-mock .github/skills/api-testing-observability-api-mock && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "api-testing-observability-api-mock" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/api-testing-observability-api-mock into .github/skills/api-testing-observability-api-mock/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-testing-observability-api-mock", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace api-testing-observability-api-mock --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sickn33/api-testing-observability-api-mock .opencode/skills/api-testing-observability-api-mock && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "api-testing-observability-api-mock" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/api-testing-observability-api-mock into .opencode/skills/api-testing-observability-api-mock/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-testing-observability-api-mock", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
api-testing-observability-api-mock- GitHub stars
- 430
- Used in
- 6 other repos
- Token cost
- ~572 tokens
- SKILL.md length
- 255 words
- Files
- 3
- Skills in repo
- 1,085
- Repo updated
- First seen
- Licence
- None found
At a glance
You are an API mocking expert specializing in realistic mock services for development, testing, and demos.
- Tasks that involve API testing
- SKILL.md covers Use this skill when, Do not use this skill when, Safety and Context, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Observability
What it does
API Testing Observability API Mock is an agent skill from aiskillstore/marketplace. You are an API mocking expert specializing in realistic mock services for development, testing, and demos. Design mocks that simulate real API behavior and enable parallel development.
Its SKILL.md is about 570 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files (for example `resources/implementation-playbook.md` and `skill-report.json`).
It sits in Testing & QA, covering API testing and Observability. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Tasks that involve API testing
- Tasks that involve Observability
Example prompts
- “/api-testing-observability-api-mock”
What it can do on your machine
Read from SKILL.md and the folder at commit 4ac52da. 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
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
API Testing Observability API Mock loads about 572 tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 255 words of instructions outside code blocks.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 255 words (~572 tokens).
“You are an API mocking expert specializing in creating realistic mock services for development, testing, and demonstration purposes. Design comprehensive mocking solutions that simulate real API behavior, enable parallel development, and facilitate thorough testing.”
- name
- api-testing-observability-api-mock
- risk
- unknown
- source
- community
- date_added
- 2026-02-27
Files
SKILL.md and 2 other files in skills/sickn33/api-testing-observability-api-mock of aiskillstore/marketplace.
- SKILL.md
- resources/implementation-playbook.md
- skill-report.json
Open the folder on GitHubat commit 4ac52da
Used in 6 other repositories
We found 15 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 6 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
- sickn33/agentic-awesome-skillsskills/api-testing-observability-api-mockplugins/agentic-awesome-skills/skills/api-testing-observability-api-mock+1 more
- rmyndharis/antigravity-skillsskills/api-testing-observability-api-mock
- agent-skills-hub/agent-skills-hubskills/api-testing-observability-api-mock
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/api-testing-observability-api-mockantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/api-testing-observability-api-mock+1 more
- benjaminasterA/antigravity-awesome-skillsskills/api-testing-observability-api-mock
- henryalouf/ruflow.agents/skills/api-testing-observability-api-mock.agents/skills/antigravity-awesome-skills/skills/api-testing-observability-api-mock+4 more
Compare with similar skills
API Testing Observability API Mock 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| API Testing Observability API Mock this skillaiskillstore/marketplace | 430 | 6 repos | ~572 | Automated safety check: Pass | None | |
| Diff-Driven QASkyvern-AI/skyvern | 23k | — | ~4.7k | Automated safety check: Warn | AGPL-3.0 | |
| Plugin Testapache/skywalking-python | 219 | — | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| AI Regression Testingaffaan-m/ECC | 274k | 5 repos | ~2.9k | Automated safety check: Pass | MIT | |
| API Test Brunonaodeng/awesome-qa-skills | 243 | — | ~663 | Automated safety check: Pass | Custom licence | |
| Otel Telemetrygenollygarden/opentelemetry-agent-skills | 106 | — | ~2.2k | Automated safety check: Pass | Apache-2.0 |
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Categories
Questions about API Testing Observability API Mock
What does API Testing Observability API Mock do?
You are an API mocking expert specializing in realistic mock services for development, testing, and demos. API Testing Observability API Mock is an agent skill from aiskillstore/marketplace. You are an API mocking expert specializing in realistic mock services for development, testing, and demos.
When should I use API Testing Observability API Mock?
API Testing Observability API Mock fits situations like: tasks that involve API testing; tasks that involve Observability.
How do I install API Testing Observability API Mock in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a claude-code`. Or copy the skill folder (skills/sickn33/api-testing-observability-api-mock in aiskillstore/marketplace) into .claude/skills/api-testing-observability-api-mock in your project. Claude Code loads it when a task matches its description.
How do I install API Testing Observability API Mock in Codex?
Run `npx skills add aiskillstore/marketplace --skill api-testing-observability-api-mock -a codex`. Or copy the skill folder (skills/sickn33/api-testing-observability-api-mock in aiskillstore/marketplace) into .agents/skills/api-testing-observability-api-mock in your project. Codex loads it when a task matches its description.
Can I use API Testing Observability API Mock 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 aiskillstore/marketplace --skill api-testing-observability-api-mock -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/api-testing-observability-api-mock, .gemini/skills/api-testing-observability-api-mock, .github/skills/api-testing-observability-api-mock and .opencode/skills/api-testing-observability-api-mock in your project.
What does API Testing Observability API Mock need to run?
SKILL.md names no scripts, command-line tools or credentials: API Testing Observability API Mock is instructions for the agent only.
Does API Testing Observability API Mock access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is API Testing Observability API Mock 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 API Testing Observability API Mock use?
No licence was found for API Testing Observability API Mock or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does API Testing Observability API Mock use?
About 572 tokens (SKILL.md is roughly 2.3k 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 API Testing Observability API Mock?
Skills that share tags, products or a category with API Testing Observability API Mock: Diff-Driven QA (Skyvern-AI/skyvern, 23k stars), Plugin Test (apache/skywalking-python, 219 stars), AI Regression Testing (affaan-m/ECC, 274k stars) and API Test Bruno (naodeng/awesome-qa-skills, 243 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains API Testing Observability API Mock?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,085 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.