writing-tests
Skill2.9k starsChanged 13 days agoAGPL-3.0View on GitHub
Instructions and hints for writing tests.
39 other projects use a version of this.
Trending
Less talk lately.about the whole repository
Most recently taken up by
- scheron/Dailytheir own version, first seen Nov 8, 2026
- mcp-use/mcp-usetheir own version, first seen Nov 8, 2026
- yuri-xyz/skillstheir own version, first seen Nov 8, 2026
- lox/agent-skillstheir own version, first seen Nov 7, 2026
- JetBrains/intellij-communitytheir own version, first seen Nov 7, 2026
- iliaal/ai-skillstheir own version, first seen Nov 7, 2026
Who's talking about chattocorp/chatto
- @yug1224.com“DiscordやSlackの代わりになるセルフホスト可能なオープンソースのチャットツールっぽい チームやコミュニティのコミュニケーション基盤として使えそうかも yug1224 starred …”Bluesky · Sep 22, 2026 · 12 likes
- @fubits.dev“Discord is neither what we need nor what we deserve #persona @chatto.run (github.com/chattocorp/c...) is …”Bluesky · Aug 23, 2026 · 7 likes
- @isotopp.infosec.exchange.ap.brid.gy“https://chatto.run/ ist, um es möglichst kurz zu beschreiben, ein Discord-Clone zum selbst hosten. …”Bluesky · Aug 31, 2026 · 3 likes
- @hmans.dev“If you don't even want to read the docs and just want to go straight to the repository, you can find that …”Bluesky · Jul 8, 2026 · 3 likes
- @isotopp.infosec.exchange.ap.brid.gy“@rstockm @joschi I am using, running an recommending Chatto (https://github.com/chattocorp/chatto; …”Bluesky · Oct 2, 2026 · 2 likes
The biggest 5 of 27 mentions linking to the repository that our crawl found. Each line is their own headline.
See all 27
Talked about on GitHub, Bluesky and Hacker News (27 times).
On GitHub · 15
- Nov 13, 2026Bump @chatto/client from 0.5.0-rc.5 to 0.5.0 — fabianloebel/chatto-music-bot0 reactions
- Nov 9, 2026chatto: 0.4.26 -> 0.5.0 — abl/nix-chatto0 reactions
- Jul 30, 2026Port internals to chattolib — jrimmer/hermes-chatto-plugin0 reactions
- Jul 23, 2026Update repo table — arran4/arran40 reactions
- Jul 19, 2026Update repo table — arran4/arran40 reactions
10 more on GitHub
- Jul 17, 2026Update repo table — arran4/arran40 reactions
- Jul 16, 2026Consumes much more tokens than letting agent explore by itself — DeusData/codebase-memory-mcp0 reactions · 9 comments
- Jul 15, 2026Update repo table — arran4/arran40 reactions
- Jul 14, 2026Update repo table — arran4/arran40 reactions
- Jul 12, 2026Update repo table — arran4/arran40 reactions
- Jul 10, 2026Incorporate release-please and study the linked release workflow — maxwelljoslyn/zingor0 reactions · 1 comment
- Jul 9, 2026📱 SNS 콘텐츠 - 2026-07-09 12:20 KST — leaf468/autothreads0 reactions
- Jul 9, 2026🤖 AI 트렌드 리포트 - 2026-07-09 12:20 KST — leaf468/autothreads0 reactions
- Jul 2, 2026Update repo table — arran4/arran40 reactions
- Jun 27, 2026Update repo table — arran4/arran40 reactions
On Bluesky · 11
- Sep 22, 2026DiscordやSlackの代わりになるセルフホスト可能なオープンソースのチャットツールっぽい チームやコミュニティのコミュニケーション基盤として使えそうかも yug1224 starred chattocorp/chatto… — @yug1224.com12 likes and reposts
- Aug 23, 2026Discord is neither what we need nor what we deserve #persona @chatto.run (github.com/chattocorp/c...) is what we need, even tho we don’t… — @fubits.dev7 likes and reposts · 1 reply
- Aug 31, 2026https://chatto.run/ ist, um es möglichst kurz zu beschreiben, ein Discord-Clone zum selbst hosten. https://github.com/chattocorp/chatto Das… — @isotopp.infosec.exchange.ap.brid.gy3 likes and reposts
- Jul 8, 2026If you don't even want to read the docs and just want to go straight to the repository, you can find that here: — @hmans.dev3 likes and reposts · 1 reply
- Oct 2, 2026@rstockm @joschi I am using, running an recommending Chatto (https://github.com/chattocorp/chatto; https://chatto.run), an encrypted chat… — @isotopp.infosec.exchange.ap.brid.gy2 likes and reposts
6 more on Bluesky
- Sep 22, 2026#golang & #TypeScript >chattocorp/chatto: A fully-featured team and group chat application that you can easily selfhost. · GitHub… — @mstdn.baldanders.info2 likes and reposts
- Oct 2, 2026Did you also consider Chatto? Maybe it wasn’t open source yet when you made the switch. github.com/chattocorp/c... — @charlbotha.com1 likes and repost
- Aug 30, 2026github.com/chattocorp/chatto 面白そう — @otagao.fish.otagao.net.ap.brid.gy1 likes and repost
- Jul 19, 2026A fully-featured team and group chat application that you can easily selfhost. #golang github.com/chattocorp/... — @golangch.bsky.social1 likes and repost
- Jul 24, 2026Chatto github.com/chattocorp/c... — @ihnorton.bsky.social0 likes and reposts · 2 replies
- Jul 8, 2026github.com/chattocorp/c... — @turkeydancer.bsky.social0 likes and reposts · 1 reply
On Hacker News · 1
- Jul 10, 2026Chattocorp/chatto: A good chat application that you can self-host2 points
Used with
Projects with it also use reviewing-code, commits and 4 more.
Other files people use alongside this one.
Files found in the same public projects as a version of this one, more often than they turn up anywhere else. Each project counts once, large collections count for less, and this file's own repository is left out.
bostonaholicSkillreviewing-code
Code review methodology for evaluating implementation changes. Use when reviewing code changes for quality, design, correctness, and maintainability. Focuses on changes made during implementation using Conventional Comments for clear, actionable feedback.
Also in 4 projects that use this
JetBrainsSkillcommits
Use this skill whenever the user asks to commit changes, write or fix a commit message, amend or rename a commit, or do a workflow that includes committing in the IntelliJ repository. This is a thin repo-specific overlay: use IntelliJ commit format, write full commit messages by default, and keep requested suffixes such as IJ-MR trailers in a final separate paragraph.
Also in 3 projects that use this
OpenAISkillrunning-tests
Guide for running tests in the openai-dotnet repository. Use this when asked to run, debug, or validate tests, or when writing new tests. Explains test modes (Playback, Record, Live), how to identify recorded vs non-recorded tests, environment variable configuration, and what to do when recordings are missing or stale.
Also in 3 projects that use this
BlockSkilldebugging
Debugging guidelines and best practices
Also in 5 projects that use this
SentrySkillsecurity-review
Finds exploitable application security vulnerabilities in code changes. Use for Warden security scans, appsec review, OWASP-style checks, authentication or authorization bugs, injection, XSS, SSRF, path traversal, secrets, unsafe crypto, webhook verification, open redirects, or sensitive data exposure.
Also in 3 projects that use this
GoogleSkillimprove-codebase-architecture
Scan a codebase for deepening opportunities, present them as a visual HTML report, then grill through whichever one you pick.
Also in 3 projects that use this
Other versions39 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 39
- remotion-dev/remotion★ 72ksame name
- PostHog/posthog★ 40ksame name
- JetBrains/intellij-community★ 21ksame name
- quarkusio/quarkus★ 16ksame name
- mcp-use/mcp-use★ 11ksame name
- DetachHead/rebased★ 6.5ksame name
- starkware-libs/cairo★ 1.9ksame name
- bholmesdev/hubble.md★ 1.5ksame name
- amplifthq/openmeld★ 1.4ksame name
- amplifthq/opentag★ 1.4ksame name
29 more not listed
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository31 other files it gives its agents.
- AGENTS.mdAGENTS.md
- authling/AGENTS.mdAGENTS.md
- cli/AGENTS.mdAGENTS.md
- proto/AGENTS.mdAGENTS.md
- .github/copilot-instructions.mdCopilot instructions
- adr-reviewSkill
- adrSkill
- bazingaSkill
- chatto-api-compatibilitySkill
- chatto-api-rulesSkill
- chatto-architecture-inventorySkill
- chatto-audit-apiSkill
- chatto-client-placementSkill
- chatto-event-sourcingSkill
- chatto-frontend-reviewSkill
- chatto-i18n-hygieneSkill
- chatto-pr-checklistSkill
- chatto-release-announcementSkill
- chatto-release-notesSkill
- continue-worktreeSkill
- fdrSkill
- glossarySkill
- js-ts-authoringSkill
- loom-architectureSkill
- pr-tourSkill
- session-wrap-upSkill
- svelte-code-writerSkill
- svelte-core-bestpracticesSkill
- svelte-docsSkill
- technical-writingSkill
- update-project-dependenciesSkill
The file
We split this skill into the rules it gives an agent
4 rules. 0 are common, 2 are distinctive, and 2 are very specific to this project.
0
Common
Most of the 39 edited versions we read keep these.
2
Distinctive
This author's own choices. Worth a look.
2
Very specific
Tied to their project's names, files or tools. Probably skip.
Licensed with conditions — read it at the source. We count its rules but don't quote them. Read them on GitHub.
“Common” is measured: kept by at least 6 in 10 of the 39 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

