Jest Testing Patterns
ChrisWiles/claude-code-showcase
Jest patterns for React Native style tests: TDD discipline, mock factory functions, module and GraphQL hook mocking, custom render helpers and anti-patterns to avoid.
MANDATORY before creating, editing, or reviewing tests in agentic.nvim, and before behavior changes that require TDD.
Install Agentic Testing
$ npx skills add carlos-algms/agentic.nvim --skill agentic-testing -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install carlos-algms/agentic.nvim agentic-testing --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/carlos-algms/agentic.nvim.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/agentic-testing .claude/skills/agentic-testing && 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 "agentic-testing" agent skill from https://github.com/carlos-algms/agentic.nvim/tree/main/.agents/skills/agentic-testing into .claude/skills/agentic-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentic-testing", 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/carlos-algms/agentic.nvim/tree/main/.agents/skills/agentic-testingType 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 carlos-algms/agentic.nvim --skill agentic-testing -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install carlos-algms/agentic.nvim agentic-testing --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/carlos-algms/agentic.nvim.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/agentic-testing .agents/skills/agentic-testing && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "agentic-testing" agent skill from https://github.com/carlos-algms/agentic.nvim/tree/main/.agents/skills/agentic-testing into .agents/skills/agentic-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentic-testing", 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 carlos-algms/agentic.nvim --skill agentic-testing -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install carlos-algms/agentic.nvim agentic-testing --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/carlos-algms/agentic.nvim.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/agentic-testing .cursor/skills/agentic-testing && 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 "agentic-testing" agent skill from https://github.com/carlos-algms/agentic.nvim/tree/main/.agents/skills/agentic-testing into .cursor/skills/agentic-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentic-testing", 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/carlos-algms/agentic.nvim.git --path .agents/skills/agentic-testing--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 carlos-algms/agentic.nvim --skill agentic-testing -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install carlos-algms/agentic.nvim agentic-testing --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/carlos-algms/agentic.nvim.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/agentic-testing .gemini/skills/agentic-testing && 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 "agentic-testing" agent skill from https://github.com/carlos-algms/agentic.nvim/tree/main/.agents/skills/agentic-testing into .gemini/skills/agentic-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentic-testing", 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 carlos-algms/agentic.nvim agentic-testingInstalls 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 carlos-algms/agentic.nvim --skill agentic-testing -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/carlos-algms/agentic.nvim.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/agentic-testing .github/skills/agentic-testing && 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 "agentic-testing" agent skill from https://github.com/carlos-algms/agentic.nvim/tree/main/.agents/skills/agentic-testing into .github/skills/agentic-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentic-testing", 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 carlos-algms/agentic.nvim --skill agentic-testing -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install carlos-algms/agentic.nvim agentic-testing --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/carlos-algms/agentic.nvim.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/agentic-testing .opencode/skills/agentic-testing && 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 "agentic-testing" agent skill from https://github.com/carlos-algms/agentic.nvim/tree/main/.agents/skills/agentic-testing into .opencode/skills/agentic-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentic-testing", 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
agentic-testing- GitHub stars
- 639
- Token cost
- ~828 tokens
- SKILL.md length
- 401 words
- Files
- 4 (incl. references)
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- MIT
At a glance
MANDATORY before creating, editing, or reviewing tests in agentic.nvim, and before behavior changes that require TDD.
- Works in 7 steps: Bootstrap missing symbols first so the… → Write the failing assertion. → Run the focused test with make test-file… → …
- Tasks that involve Test-driven development
- SKILL.md covers Framework, TDD, Commands and Before writing assertions, plus 1 more section
- Calls make
What it does
Agentic Testing is an agent skill from carlos-algms/agentic.nvim. MANDATORY before creating, editing, or reviewing tests in agentic.nvim, and before behavior changes that require TDD. Covers mini.test workflow, red/green rules, commands, mark-count checks, and which test references to load.
Its SKILL.md is about 830 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/assert-spy.md`, `references/async-tests.md` and `references/child-nvim.md`).
It sits in Testing & QA, covering Test-driven development. It works with Lua. The repository describes itself as: Agentic Chat Interface directly in Neovim with ACP providers from Claude-Code, Gemini, Codex, OpenCode, and Cursor-agent. The licence is MIT.
When your agent uses it
- Tasks that involve Test-driven development
Example prompts
- “/agentic-testing”
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Bootstrap missing symbols first so the test loads.
- Write the failing assertion.
- Run the focused test with make test-file FILE= and confirm it fails
- Implement the minimum code to pass.
- Re-run make test-file FILE=.
- Run the relevant full check.
- After adding or changing tests, reconcile the case count. This guards against
What it can do on your machine
Read from SKILL.md and the folder at commit e280dee. 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:
make
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
Agentic Testing loads about 828 tokens when it runs, and up to ~2k if it reads all its reference files. Until then it costs about 60 tokens; SKILL.md has 401 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
The full file from carlos-algms/agentic.nvim at commit e280dee, republished under its MIT licence (© carlos-algms). 401 words, ~828 tokens.
Download SKILL.mdSave it as
.claude/skills/agentic-testing/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- agentic-testing
- description
- MANDATORY before creating, editing, or reviewing tests in agentic.nvim, and before behavior changes that require TDD. Covers mini.test workflow, red/green rules, commands, mark-count checks, and which test references to load.
Agentic Testing
Framework
- mini.test with Busted-style emulation.
- Test files live next to source files as
<module>.test.lua. tests/holds the runner, helpers, functional tests, and integration tests.- The previous Busted/lazy.nvim setup is gone.
TDD
For every bug fix or behavioral change:
- Bootstrap missing symbols first so the test loads.
- Write the failing assertion.
- Run the focused test with
make test-file FILE=<path>and confirm it fails for behavior, not setup:- wrong: missing module, nil method, syntax error, unresolved import
- right: value/state/output mismatch
- Implement the minimum code to pass.
- Re-run
make test-file FILE=<path>. - Run the relevant full check.
- After adding or changing tests, reconcile the case count. This guards against
silently dropped OR unexpectedly generated tests. Both are failures.
- Compute EXPECTED cases by reading the file, not grepping:
- each static
it()= 1 case - each
it()inside afor/each/table-driven loop = the loop's iteration count (a singleit(line can emit many cases, or zero) - a grep of
it(is a lower bound, never the answer
- each static
- Read ACTUAL from
Total number of cases: Nin themake test-file FILE=<path>output. - EXPECTED MUST equal ACTUAL. Mismatch = a test was dropped, a loop is empty, or a generator misfired; stop and reconcile before claiming green. Eyeballing ACTUAL alone is NOT the check - you must derive EXPECTED first.
- Compute EXPECTED cases by reading the file, not grepping:
Pure refactors, formatting, and docs can skip red/green, but say that in the PR.
Show full SKILL.md (165 more words)Show less
Commands
make testmake test-file FILE=lua/agentic/acp/agent_modes.test.luaUse make test-file FILE=<path> for the red/green inner loop; it runs one file
in seconds. Never run make validate between iterations. After all .lua
edits, run make validate and fix until it passes - the task is not done until
it does. Pre-commit gate, not a per-test step.
For Lua or test changes, root AGENTS.md requires make validate after the
focused checks.
Before writing assertions
Read the exact helper APIs before using them:
tests/helpers/assert.luatests/helpers/spy.luatests/helpers/child.luawhen using child Neovim tests
Load references only when needed:
references/assert-spy.md: custom assert, spy, and stub API details.references/child-nvim.md: child process tests and RPC helpers.references/async-tests.md: scheduled/deferred code and mark-count traps.
Defaults
- Unit tests: co-located
<module>.test.lua. - Integration or functional tests:
tests/integration/ortests/functional/when behavior spans modules or needs real editor state. - ACP or transport-touching tests must stub
agentic.acp.acp_transportor any dependency that opens subprocesses or network calls. - Tests run sequentially in one Neovim process unless you explicitly use
tests.helpers.child. - Clean up buffers, windows, autocommands, globals, stubs, and spies.
© carlos-algms, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files (references) in .agents/skills/agentic-testing of carlos-algms/agentic.nvim.
- SKILL.md
- references/assert-spy.md
- references/async-tests.md
- references/child-nvim.md
Open the folder on GitHubat commit e280dee
Compare with similar skills
Agentic Testing 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 |
|---|---|---|---|---|---|---|
| Agentic Testing this skillcarlos-algms/agentic.nvim | 639 | — | ~828 | Automated safety check: Pass | MIT | |
| Jest Testing PatternsChrisWiles/claude-code-showcase | 6.1k | 7 repos | ~1.5k | Automated safety check: Pass | None | |
| Rust TDD Workflowrtk-ai/rtk | 83k | — | ~753 | Automated safety check: Notes | Apache-2.0 | |
| TDDfossasia/eventyay-interpretation | 1.6k | 28 repos | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| RTK Filter TDD in Rustrtk-ai/rtk | 83k | — | ~1.9k | Automated safety check: Notes | Apache-2.0 | |
| TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph | 112 | 11 repos | ~2.4k | Automated safety check: Pass | None |
Similar skills
Rust TDD Workflow
rtk-ai/rtk
Enforces red-green-refactor for Rust work, with idiomatic test patterns, a naming convention and a pre-commit gate of cargo fmt, clippy and test.
TDD
fossasia/eventyay-interpretation
Test-driven development. An agent skill from fossasia/eventyay-interpretation.
RTK Filter TDD in Rust
rtk-ai/rtk
Enforces red-green-refactor for new RTK output filters in Rust, using real captured fixtures, snapshot tests with insta and token-savings assertions.
TDD Workflow
hellangleZ/burn-in-cceverywhere-ralph
A skill your agent uses when writing new features, fixing bugs, or refactoring code.
- Official
TDD
sanity-io/sanity
Test-driven development with red-green-refactor loop. An agent skill from sanity-io/sanity.
More from carlos-algms/agentic.nvim
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A skill your agent uses when creating, listing, or managing GitHub discussions in carlos-algms/agentic.nvim repository
Agentic Acp Protocol Flow
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MANDATORY before editing ACPClient, ACPTransport, AgentInstance, ACP provider flow, tool-call parsing, permission requests, provider switch, reconnect, or ACP subprocess lifecycle in agentic.nvim.
Agentic Vimdoc
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A skill your agent uses when ACP schema is necessary to clarify the work or when the user asks for ACP data, rules, events, or documentation
Agentic Lua Class
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MANDATORY before writing or editing ANY .lua file in this repo - classes, methods, fields, functions, or LuaCATS annotations.
Agentic UI Message Writer
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MANDATORY before editing MessageWriter, PermissionManager, tool-call block rendering, sender headers, thinking blocks, auto-scroll, folds, status rows, permission buttons, or chat-buffer tool-call…
Related
Works with
Categories
Questions about Agentic Testing
What does Agentic Testing do?
MANDATORY before creating, editing, or reviewing tests in agentic.nvim, and before behavior changes that require TDD. nvim.nvim, and before behavior changes that require TDD.
When should I use Agentic Testing?
Agentic Testing fits situations like: tasks that involve Test-driven development.
How do I install Agentic Testing in Claude Code?
Run `npx skills add carlos-algms/agentic.nvim --skill agentic-testing -a claude-code`. Or copy the skill folder (.agents/skills/agentic-testing in carlos-algms/agentic.nvim) into .claude/skills/agentic-testing in your project. Claude Code loads it when a task matches its description.
How do I install Agentic Testing in Codex?
Run `npx skills add carlos-algms/agentic.nvim --skill agentic-testing -a codex`. Or copy the skill folder (.agents/skills/agentic-testing in carlos-algms/agentic.nvim) into .agents/skills/agentic-testing in your project. Codex loads it when a task matches its description.
Can I use Agentic Testing 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 carlos-algms/agentic.nvim --skill agentic-testing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agentic-testing, .gemini/skills/agentic-testing, .github/skills/agentic-testing and .opencode/skills/agentic-testing in your project.
What does Agentic Testing need to run?
Going by SKILL.md and its folder, Agentic Testing needs the command-line tools its instructions call (make).
Does Agentic Testing 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 Agentic Testing 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 Agentic Testing use?
Agentic Testing is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Agentic Testing use?
About 828 tokens (SKILL.md is roughly 3.3k 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 1.2k tokens, read only when the agent opens those files.
What are the alternatives to Agentic Testing?
Skills that share tags, products or a category with Agentic Testing: Jest Testing Patterns (ChrisWiles/claude-code-showcase, 6.1k stars), Rust TDD Workflow (rtk-ai/rtk, 83k stars), TDD (fossasia/eventyay-interpretation, 1.6k stars) and RTK Filter TDD in Rust (rtk-ai/rtk, 83k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Agentic Testing?
carlos-algms (a GitHub user) maintains it in carlos-algms/agentic.nvim, which has 639 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 7, 2026.
Source: carlos-algms/agentic.nvim on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.