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Agent skill

Django Outside In TDD

by hashgraph-online in hashgraph-online/awesome-codex-plugins

Drive Django features with outside-in and double-loop TDD: user story, Selenium or functional test, focused Django unit/integration tests, minimal implementation, and refactor.

MITAuto-check passedTesting & QA

Install Django Outside In TDD

skills CLI
$ npx skills add hashgraph-online/awesome-codex-plugins --skill django-outside-in-tdd -a claude-code

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

GitHub CLI
$ gh skill install hashgraph-online/awesome-codex-plugins django-outside-in-tdd --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/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/LVTD-LLC/skills/skills/django-outside-in-tdd .claude/skills/django-outside-in-tdd && 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
django-outside-in-tdd
GitHub stars
1.3k
Token cost
~905 tokens
SKILL.md length
406 words
Files
4 (incl. references)
Skills in repo
716
Repo updated
First seen
Licence
MIT

At a glance

Drive Django features with outside-in and double-loop TDD: user story, Selenium or functional test, focused Django unit/integration tests, minimal implementation, and refactor.

  • Works in 5 steps: Start from the user-visible behavior. → Run the outer test and make the failure… → Drop into the inner loop. → …
  • Changing Django behavior with tests-first workflow
  • SKILL.md covers Source Traceability, Workflow, Layer Choice and Guardrails, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Django Outside In TDD is an agent skill from hashgraph-online/awesome-codex-plugins. Drive Django features with outside-in and double-loop TDD: user story, Selenium or functional test, focused Django unit/integration tests, minimal implementation, and refactor. Use when starting or changing Django behavior with tests-first workflow, red/green/refactor, working-state-to-working-state refactors, or deciding which layer should own the next test.

Its SKILL.md is about 910 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `agents/openai.yaml`, `evals/evals.json` and `references/patterns.md`). Compatibility notes: Codex, Claude Code, and other Agent Skills-compatible clients.

It sits in Testing & QA, covering Test-driven development, Backend development and Refactoring. It works with Django and Selenium. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is MIT.

When your agent uses it

  • Changing Django behavior with tests-first workflow
  • Red/green/refactor
  • Working-state-to-working-state refactors
  • Deciding which layer should own the next test

Example prompts

  • “/django-outside-in-tdd”

Requirements

  • Python 3
  • Compatibility (from SKILL.md): Codex, Claude Code, and other Agent Skills-compatible clients.

Workflow steps

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

  1. Start from the user-visible behavior.
  2. Run the outer test and make the failure useful.
  3. Drop into the inner loop.
  4. Make the inner test pass with minimal code.
  5. Refactor only on green.

What it can do on your machine

Read from SKILL.md and the folder at commit 3e1456a. 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.

  • Compatibility

    Codex, Claude Code, and other Agent Skills-compatible clients.

    From compatibility in the SKILL.md frontmatter.

Context cost

Django Outside In TDD loads about 905 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 96 tokens; SKILL.md has 406 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~96
When it runs · the whole SKILL.md, loaded when a task matches
~905
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.5k

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 hashgraph-online/awesome-codex-plugins at commit 3e1456a, republished under its MIT licence (© hashgraph-online). 406 words, ~905 tokens.

Download SKILL.mdSave it as .claude/skills/django-outside-in-tdd/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
django-outside-in-tdd
description
Drive Django features with outside-in and double-loop TDD: user story, Selenium or functional test, focused Django unit/integration tests, minimal implementation, and refactor. Use when starting or changing Django behavior with tests-first workflow, red/green/refactor, working-state-to-working-state refactors, or deciding which layer should own the next test.
compatibility
Codex, Claude Code, and other Agent Skills-compatible clients.
license
MIT
metadata.version
0.1.0
metadata.displayName
Django Outside-In TDD
metadata.category
Django
metadata.tags
django,tdd,testing,functional-tests,unit-tests

Django Outside-In TDD

Use this skill when a Django feature should be grown from observable user behavior down into views, forms, models, and helpers. Keep the outer test broad enough to prove user value and the inner tests small enough to keep the red/green loop fast.

Source Traceability

Primary source: Harry Percival, Test-Driven Development with Python, 3rd ed. Guidance is transformed and paraphrased from chapters 1-7, chapter 24, and Appendix A, especially the user-story-to-functional-test flow, double-loop TDD, working-state-to-working-state refactoring, and outside-in development.

Workflow

  1. Start from the user-visible behavior.

    • Write a short user story or acceptance note.
    • Choose one functional test only when the behavior crosses browser, routing, template, persistence, or integration boundaries.

  2. Run the outer test and make the failure useful.

    • Confirm the failure is expected and points to the next missing behavior.
    • Improve failure messages before implementation if the failure is vague.

  3. Drop into the inner loop.

    • Add the smallest Django test for the next missing component: URL, view, template context, form, model, or helper.
    • Use Django's test client, RequestFactory, form instances, or model tests at the narrowest useful boundary.

  4. Make the inner test pass with minimal code.

    • Avoid speculative data models, URLs, fields, and abstractions.
    • Keep a scratchpad of next ideas instead of implementing them early.

  5. Refactor only on green.

    • Refactor production code first, then test code.
    • Preserve behavior through the existing tests.
    • Return to the outer test to choose the next slice.

Read patterns.md for layer choices, refactoring rules, and failure-handling patterns.

Show full SKILL.md (156 more words)Show less

Layer Choice

SignalNext Test
User workflow not provenFunctional test
URL or redirect missingURL/view test
Template output changedView/template integration test or HTML parser assertion
Validation rule unclearForm or model test
Domain helper emergingPlain Python unit test
Refactor crosses wiringOne integration test plus focused unit tests

Guardrails

  • Do not write production code before a failing proof unless the task is pure cleanup.
  • Do not keep adding Selenium coverage for every branch; promote detailed cases to faster tests.
  • Do not test constants or implementation details unless they are the public contract.
  • Prefer working state to working state over large rewrites.
  • Use existing green tests as a refactoring safety net before changing structure.

Verification

Before finishing, report:

  • Outer behavior covered or intentionally not needed.
  • Inner tests added, updated, or reused.
  • Red failure or characterization observed before implementation when behavior changed.
  • Focused Django test command and result.
  • Any deliberate no-test exception with replacement verification.

© hashgraph-online, 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 plugins/LVTD-LLC/skills/skills/django-outside-in-tdd of hashgraph-online/awesome-codex-plugins.

  • SKILL.md
  • agents/openai.yaml
  • evals/evals.json
  • references/patterns.md

Open the folder on GitHubat commit 3e1456a

Compare with similar skills

Django Outside In TDD 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.

Django Outside In TDD compared with similar skills
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Django Outside In TDD this skillhashgraph-online/awesome-codex-plugins1.3k—~905Automated safety check: PassMIT
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Springboot TDDaffaan-m/ECC277k3 repos~813Automated safety check: PassMIT
Django TDDaffaan-m/ECC277k3 repos~4.9kAutomated safety check: PassMIT
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Works with

Categories

Questions about Django Outside In TDD

What does Django Outside In TDD do?

Drive Django features with outside-in and double-loop TDD: user story, Selenium or functional test, focused Django unit/integration tests, minimal implementation, and refactor. Django Outside In TDD is an agent skill from hashgraph-online/awesome-codex-plugins. Drive Django features with outside-in and double-loop TDD: user story, Selenium or functional test, focused Django unit/integration tests, minimal implementation, and refactor.

When should I use Django Outside In TDD?

Django Outside In TDD fits situations like: changing Django behavior with tests-first workflow; red/green/refactor; working-state-to-working-state refactors; deciding which layer should own the next test.

How do I install Django Outside In TDD in Claude Code?

Run `npx skills add hashgraph-online/awesome-codex-plugins --skill django-outside-in-tdd -a claude-code`. Or copy the skill folder (plugins/LVTD-LLC/skills/skills/django-outside-in-tdd in hashgraph-online/awesome-codex-plugins) into .claude/skills/django-outside-in-tdd in your project. Claude Code loads it when a task matches its description.

How do I install Django Outside In TDD in Codex?

Run `npx skills add hashgraph-online/awesome-codex-plugins --skill django-outside-in-tdd -a codex`. Or copy the skill folder (plugins/LVTD-LLC/skills/skills/django-outside-in-tdd in hashgraph-online/awesome-codex-plugins) into .agents/skills/django-outside-in-tdd in your project. Codex loads it when a task matches its description.

Can I use Django Outside In TDD 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 hashgraph-online/awesome-codex-plugins --skill django-outside-in-tdd -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/django-outside-in-tdd, .gemini/skills/django-outside-in-tdd, .github/skills/django-outside-in-tdd and .opencode/skills/django-outside-in-tdd in your project.

What does Django Outside In TDD need to run?

SKILL.md names no scripts, command-line tools or credentials: Django Outside In TDD is instructions for the agent only. Our summary lists: Python 3. Compatibility (from SKILL.md): Codex, Claude Code, and other Agent Skills-compatible clients..

Does Django Outside In TDD 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 Django Outside In TDD 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 Django Outside In TDD use?

Django Outside In TDD is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Django Outside In TDD use?

About 905 tokens (SKILL.md is roughly 3.6k 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 641 tokens, read only when the agent opens those files.

What are the alternatives to Django Outside In TDD?

Skills that share tags, products or a category with Django Outside In TDD: Springboot TDD (affaan-m/ECC, 277k stars), Django TDD (affaan-m/ECC, 277k stars), Springboot TDD (affaan-m/ECC, 277k stars) and Django TDD (affaan-m/ECC, 277k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Django Outside In TDD?

hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,267 GitHub stars. The repository holds 716 skills in this directory. The repository was last updated on October 10, 2026.

Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.