Playwright Core
testdino-hq/playwright-skill
Battle-tested Playwright patterns for writing and debugging reliable E2E, API, component, visual, accessibility, and security tests.
Retrieves a link from Mailcatcher. An agent skill from bitwarden/ai-plugins.
Install Reading Mailcatcher API
$ npx skills add bitwarden/ai-plugins --skill reading-mailcatcher-api -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install bitwarden/ai-plugins reading-mailcatcher-api --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/bitwarden/ai-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api .claude/skills/reading-mailcatcher-api && 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 "reading-mailcatcher-api" agent skill from https://github.com/bitwarden/ai-plugins/tree/main/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api into .claude/skills/reading-mailcatcher-api/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reading-mailcatcher-api", 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/bitwarden/ai-plugins/tree/main/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-apiType 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 bitwarden/ai-plugins --skill reading-mailcatcher-api -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install bitwarden/ai-plugins reading-mailcatcher-api --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitwarden/ai-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api .agents/skills/reading-mailcatcher-api && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "reading-mailcatcher-api" agent skill from https://github.com/bitwarden/ai-plugins/tree/main/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api into .agents/skills/reading-mailcatcher-api/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reading-mailcatcher-api", 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 bitwarden/ai-plugins --skill reading-mailcatcher-api -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install bitwarden/ai-plugins reading-mailcatcher-api --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitwarden/ai-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api .cursor/skills/reading-mailcatcher-api && 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 "reading-mailcatcher-api" agent skill from https://github.com/bitwarden/ai-plugins/tree/main/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api into .cursor/skills/reading-mailcatcher-api/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reading-mailcatcher-api", 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/bitwarden/ai-plugins.git --path plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api--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 bitwarden/ai-plugins --skill reading-mailcatcher-api -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install bitwarden/ai-plugins reading-mailcatcher-api --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitwarden/ai-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api .gemini/skills/reading-mailcatcher-api && 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 "reading-mailcatcher-api" agent skill from https://github.com/bitwarden/ai-plugins/tree/main/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api into .gemini/skills/reading-mailcatcher-api/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reading-mailcatcher-api", 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 bitwarden/ai-plugins reading-mailcatcher-apiInstalls 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 bitwarden/ai-plugins --skill reading-mailcatcher-api -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/bitwarden/ai-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api .github/skills/reading-mailcatcher-api && 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 "reading-mailcatcher-api" agent skill from https://github.com/bitwarden/ai-plugins/tree/main/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api into .github/skills/reading-mailcatcher-api/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reading-mailcatcher-api", 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 bitwarden/ai-plugins --skill reading-mailcatcher-api -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install bitwarden/ai-plugins reading-mailcatcher-api --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitwarden/ai-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api .opencode/skills/reading-mailcatcher-api && 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 "reading-mailcatcher-api" agent skill from https://github.com/bitwarden/ai-plugins/tree/main/plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api into .opencode/skills/reading-mailcatcher-api/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reading-mailcatcher-api", 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
reading-mailcatcher-api- GitHub stars
- 154
- Token cost
- ~2.3k tokens
- SKILL.md length
- 795 words
- Files
- 9 (incl. scripts, references)
- Skills in repo
- 35
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Retrieves a link from Mailcatcher. An agent skill from bitwarden/ai-plugins.
- A local testing
- SKILL.md covers Quick reference — use the script, Prerequisites, Common Email Types and Patterns and Important Notes
- Runs Python scripts from its folder; calls docker
- Debugging flow needs a link from an email
What it does
Reading Mailcatcher API is an agent skill from bitwarden/ai-plugins, published by the product's own GitHub organization. Retrieves a link from Mailcatcher. Use when a local testing or debugging flow needs a link from an email, such as account verification links, magic-link logins, trial activations, organization invites, emergency access, and other email-driven flows. Preferred over the Mailcatcher browser UI in automation, where Playwright's CORS blocks a direct fetch. Do NOT use it to configure SMTP, start Mailcatcher, or debug delivery.
Its SKILL.md is about 2.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 12 other files, including scripts and reference files (for example `evals/README.md`, `evals/trigger-eval.json` and `references/email-patterns.md`).
It sits in Backend & APIs, covering Authentication, Transactional email and Debugging. It works with Playwright. The repository describes itself as: AI plugin marketplace.
When your agent uses it
- A local testing
- Debugging flow needs a link from an email
- Such as account verification links
- Magic-link logins
Example prompts
- “Use the reading-mailcatcher-api skill to retrieve a link from Mailcatcher. An agent skill from bitwarden/ai-plugins”
- “/reading-mailcatcher-api”
Requirements
- Python 3
- Docker
- Pre-approved tools (allowed-tools): Read(/${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/references/**), Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/read_mailcatcher.py:*), Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/get_admin_email.py:*)
What it can do on your machine
Read from SKILL.md and the folder at commit 3e6bea3. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
Read(/${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/references/**)Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/read_mailcatcher.py:*)Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/get_admin_email.py:*)
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 4 files in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
docker
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use docker, 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
Reading Mailcatcher API loads about 2.3k tokens when it runs, and up to ~4.3k if it reads all its reference files. Until then it costs about 112 tokens; SKILL.md has 795 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); the scripts in this folder 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 795 words (~2,300 tokens).
“For all programmatic uses (test runs, ad-hoc fetches, debugging), call the co-located script directly.”
- name
- reading-mailcatcher-api
- allowed-tools
- Read(/${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/references/**), Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/read_mailcatcher.py:*), Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/get_admin_email.py:*)
- argument-hint
- --recipient <email> [--pattern <subject-keyword>] [--link-filter <regex>]
Files
SKILL.md and 8 other files (scripts, references) in plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api of bitwarden/ai-plugins.
- SKILL.md
- evals/README.md
- evals/trigger-eval.json
- references/email-patterns.md
- references/manual-api-walkthrough.md
- scripts/get_admin_email.py
- scripts/read_mailcatcher.py
- scripts/tests/test_get_admin_email.py
- scripts/tests/test_read_mailcatcher.py
Open the folder on GitHubat commit 3e6bea3
Compare with similar skills
Reading Mailcatcher API 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 |
|---|---|---|---|---|---|---|
| Reading Mailcatcher API this skillbitwarden/ai-plugins | 154 | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| Playwright Coretestdino-hq/playwright-skill | 390 | 1 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Testingkortix-ai/suna | 20k | — | ~3.6k | Automated safety check: Notes | Custom licence | |
| Playground Website DebuggingWordPress/wordpress-playground | 2k | — | ~1.9k | Automated safety check: Pass | GPL-2.0 | |
| UI Visual DebuggingNangoHQ/nango | 13k | — | ~1.3k | Automated safety check: Pass | Custom licence | |
| E2E Tests Studiomastra-ai/mastra | 29k | — | ~4.3k | Automated safety check: Pass | Custom licence |
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Related
Works with
Categories
Questions about Reading Mailcatcher API
What does Reading Mailcatcher API do?
Retrieves a link from Mailcatcher. An agent skill from bitwarden/ai-plugins. Reading Mailcatcher API is an agent skill from bitwarden/ai-plugins, published by the product's own GitHub organization. Retrieves a link from Mailcatcher.
When should I use Reading Mailcatcher API?
Reading Mailcatcher API fits situations like: A local testing; debugging flow needs a link from an email; such as account verification links; magic-link logins.
How do I install Reading Mailcatcher API in Claude Code?
Run `npx skills add bitwarden/ai-plugins --skill reading-mailcatcher-api -a claude-code`. Or copy the skill folder (plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api in bitwarden/ai-plugins) into .claude/skills/reading-mailcatcher-api in your project. Claude Code loads it when a task matches its description.
How do I install Reading Mailcatcher API in Codex?
Run `npx skills add bitwarden/ai-plugins --skill reading-mailcatcher-api -a codex`. Or copy the skill folder (plugins/bitwarden-mailcatcher-tools/skills/reading-mailcatcher-api in bitwarden/ai-plugins) into .agents/skills/reading-mailcatcher-api in your project. Codex loads it when a task matches its description.
Can I use Reading Mailcatcher API 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 bitwarden/ai-plugins --skill reading-mailcatcher-api -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/reading-mailcatcher-api, .gemini/skills/reading-mailcatcher-api, .github/skills/reading-mailcatcher-api and .opencode/skills/reading-mailcatcher-api in your project.
What does Reading Mailcatcher API need to run?
Going by SKILL.md and its folder, Reading Mailcatcher API needs Python for the scripts in its folder and the command-line tools its instructions call (docker). Our summary lists: Python 3; Docker. Its frontmatter pre-approves these tools: Read(/${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/references/**), Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/read_mailcatcher.py:*), Bash(${CLAUDE_PLUGIN_ROOT}/skills/reading-mailcatcher-api/scripts/get_admin_email.py:*).
Does Reading Mailcatcher API access the network?
SKILL.md contains no URLs. Its commands use docker, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Reading Mailcatcher API 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Reading Mailcatcher API use?
Reading Mailcatcher API 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 Reading Mailcatcher API use?
About 2.3k tokens (SKILL.md is roughly 9.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2k tokens, read only when the agent opens those files.
What are the alternatives to Reading Mailcatcher API?
Skills that share tags, products or a category with Reading Mailcatcher API: Playwright Core (testdino-hq/playwright-skill, 390 stars), Testing (kortix-ai/suna, 20k stars), Playground Website Debugging (WordPress/wordpress-playground, 2k stars) and UI Visual Debugging (NangoHQ/nango, 13k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Reading Mailcatcher API?
bitwarden (a GitHub organization, an official publisher) maintains it in bitwarden/ai-plugins, which has 154 GitHub stars. The repository holds 35 skills in this directory. The repository was last updated on October 9, 2026.
Source: bitwarden/ai-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.