Agent skill

Understand Project

by ossappscollective in ossappscollective/oss-weather

Ground a feature or fix in existing code before planning or building — find a similar pattern, identify reusable assets, map the touch surface.

MITAuto-check passedDevelopment

Install Understand Project

skills CLI
$ npx skills add ossappscollective/oss-weather --skill understand-project -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ossappscollective/oss-weather understand-project --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ossappscollective/oss-weather.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/understand-project .claude/skills/understand-project && rm -rf skills-src

Use ~/.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/

Facts

Skill name
understand-project
GitHub stars
456
Token cost
~576 tokens
SKILL.md length
256 words
Files
1
Skills in repo
8
Repo updated
First seen
Licence
MIT

At a glance

Ground a feature or fix in existing code before planning or building — find a similar pattern, identify reusable assets, map the touch surface.

  • Works in 5 steps: Learn the layout that applies. App code… → Find a similar existing implementation.… → Identify reusable assets — existing… → …
  • Development work in your project
  • SKILL.md covers Steps and Bias
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Understand Project is an agent skill from ossappscollective/oss-weather. Ground a feature or fix in existing code before planning or building — find a similar pattern, identify reusable assets, map the touch surface. Internal helper invoked by feat / fix (both modes) — not meant to be run on its own.

Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. It works with Svelte, Android and iOS. The repository describes itself as: An OSS weather app for iOS/Android. The licence is MIT.

When your agent uses it

  • Development work in your project

Example prompts

  • “/understand-project”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Learn the layout that applies. App code is under app/: .svelte screens/components/modals live in app/components// (feature dirs: camera…
  2. Find a similar existing implementation. Glob/Grep for a .svelte component or a service that solves a comparable problem. Read 1-2…
  3. Identify reusable assets — existing components in app/components/common/ and app/components/widgets/, svelte stores…
  4. Map the touch surface — every file, component, service, model, i18n key that needs to change. Trace data flow and callers (service…
  5. Check third-party libraries — when a library is involved (@nativescript-community/*, @akylas/*, svelte-native, sqlite/kiss-orm, …), use…

What it can do on your machine

Read from SKILL.md and the folder at commit 42715ad. 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

Understand Project loads about 576 tokens when it runs. Until then it costs about 62 tokens; SKILL.md has 256 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~62
When it runs · the whole SKILL.md, loaded when a task matches
~576

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 ossappscollective/oss-weather at commit 42715ad, republished under its MIT licence (© ossappscollective). 256 words, ~576 tokens.

Download SKILL.mdSave it as .claude/skills/understand-project/SKILL.md (or your agent's skills folder).
name
understand-project
description
Ground a feature or fix in existing code before planning or building — find a similar pattern, identify reusable assets, map the touch surface. Internal helper invoked by feat / fix (both modes) — not meant to be run on its own.
disable-model-invocation
true

Ground every plan and implementation in code that already exists. A plan that says "follows the same pattern as app/components/edit/DocumentEdit.svelte" beats one describing an abstraction in the abstract — the executor gets low cognitive load and a working reference. This is the method; the calling skill says what to build.

Steps

  1. Learn the layout that applies. App code is under app/: .svelte screens/components/modals live in app/components/<feature>/ (feature dirs: camera, edit, list, ocr, pdf, pkpass, qrcode, security, settings, view, common, widgets); domain logic lives in service singletons under app/services/ (documents.ts, sync.ts, ocr.ts, security.ts, …); data models in app/models/; helpers in app/utils/, app/helpers/, app/transformers/; strings in app/i18n/; SCSS themes in app/themes/. Platform splits use .android.ts / .ios.ts.
  2. Find a similar existing implementation. Glob/Grep for a .svelte component or a service that solves a comparable problem. Read 1-2 end-to-end so you can point at them by path.
  3. Identify reusable assets — existing components in app/components/common/ and app/components/widgets/, svelte stores (app/utils/svelte/store.ts), service singletons, models, and utils/helpers. Reuse these by name rather than inventing new ones.
  4. Map the touch surface — every file, component, service, model, i18n key that needs to change. Trace data flow and callers (service singletons are shared, so a change ripples) so nothing is missed.
  5. Check third-party libraries — when a library is involved (@nativescript-community/*, @akylas/*, svelte-native, sqlite/kiss-orm, …), use Context7 for version-matched docs before assuming an API.

Bias

Pick the simplest, cleanest solution: reuse existing patterns/components/hooks, fewest files touched, smallest new surface. If a clever approach and a boring approach reach the same outcome, choose the boring one.

© ossappscollective, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .claude/skills/understand-project of ossappscollective/oss-weather.

Open the folder on GitHubat commit 42715ad

Compare with similar skills

Understand Project 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.

Understand Project compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Understand Project this skillossappscollective/oss-weather456—~576Automated safety check: PassMIT
Commit PRsamuelclay/NewsBlur7.6k—~4.1kAutomated safety check: PassMIT
jscpd Code Migration Trackerkucherenko/jscpd6.4k—~5kAutomated safety check: PassMIT
Codebase Comparison with jscpdkucherenko/jscpd6.4k—~3.2kAutomated safety check: PassMIT
Code Guidelinesgetsentry/sentry-react-native1.8k—~3.2kAutomated safety check: PassMIT
ExecuTorch Build Guidepytorch/executorch5.1k—~2.3kAutomated safety check: NotesCustom licence

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More from ossappscollective/oss-weather

All 8 skills in this repo
  • Commit

    ossappscollective/oss-weather

    MANDATORY skill for ALL commits. An agent skill from ossappscollective/oss-weather.

    456 GitHub stars~1.3k tokensUpdated today
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  • Open PR

    ossappscollective/oss-weather

    MANDATORY skill for ALL pull requests. An agent skill from ossappscollective/oss-weather.

    456 GitHub stars~918 tokensUpdated today
    Auto-check passed
  • Feat

    ossappscollective/oss-weather

    Build a feature end-to-end (GitHub issue or free-text → plan → implement → PR), OR plan one read-only with --investigate.

    456 GitHub stars~3.9k tokensUpdated today
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  • Fix

    ossappscollective/oss-weather

    Debug and fix any non-trivial issue end-to-end, OR triage a GitHub bug issue read-only.

    456 GitHub stars~4.2k tokensUpdated today
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  • Investigate Contract

    ossappscollective/oss-weather

    Read-only guarantee + interactive-vs-autonomous (--auto) behavior for investigate modes.

    456 GitHub stars~803 tokensUpdated today
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  • Branch Check

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    Ensure you're on a correct working branch off up-to-date main before planning or editing — starting from a GitHub issue when one is in play.

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Categories

Questions about Understand Project

What does Understand Project do?

Ground a feature or fix in existing code before planning or building — find a similar pattern, identify reusable assets, map the touch surface. Understand Project is an agent skill from ossappscollective/oss-weather. Ground a feature or fix in existing code before planning or building — find a similar pattern, identify reusable assets, map the touch surface.

When should I use Understand Project?

Understand Project fits situations like: development work in your project.

How do I install Understand Project in Claude Code?

Run `npx skills add ossappscollective/oss-weather --skill understand-project -a claude-code`. Or copy the skill folder (.claude/skills/understand-project in ossappscollective/oss-weather) into .claude/skills/understand-project in your project. Claude Code loads it when a task matches its description.

How do I install Understand Project in Codex?

Run `npx skills add ossappscollective/oss-weather --skill understand-project -a codex`. Or copy the skill folder (.claude/skills/understand-project in ossappscollective/oss-weather) into .agents/skills/understand-project in your project. Codex loads it when a task matches its description.

Can I use Understand Project 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 ossappscollective/oss-weather --skill understand-project -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/understand-project, .gemini/skills/understand-project, .github/skills/understand-project and .opencode/skills/understand-project in your project.

What does Understand Project need to run?

SKILL.md names no scripts, command-line tools or credentials: Understand Project is instructions for the agent only.

Does Understand Project 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 Understand Project 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 Understand Project use?

Understand Project 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 Understand Project use?

About 576 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 Understand Project?

Skills that share tags, products or a category with Understand Project: Commit PR (samuelclay/NewsBlur, 7.6k stars), jscpd Code Migration Tracker (kucherenko/jscpd, 6.4k stars), Codebase Comparison with jscpd (kucherenko/jscpd, 6.4k stars) and Code Guidelines (getsentry/sentry-react-native, 1.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Understand Project?

ossappscollective (a GitHub organization) maintains it in ossappscollective/oss-weather, which has 456 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 7, 2026.

Source: ossappscollective/oss-weather on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.