api-test-writer

api-test-writer is an agent for Claude Code from manikosto/claude-code-python-stack. It costs 49 tokens per session (2,705 once invoked), scanned A, original, no licence file.

An AI coding agent that writes automated tests for web APIs, the endpoints applications use to exchange data. It creates pytest tests using common Python HTTP libraries and can structure test data and reports.

In plain words
What is it for?
Use it to write or extend Python tests for API requests, responses, validation, and test data.
Why use it?
It reduces the manual work of creating API tests and expanding coverage of existing endpoints.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to write or extend Python tests for API requests, responses, validation, and test data.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/manikosto/claude-code-python-stack/api-test-writer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/manikosto/claude-code-python-stack

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for api-test-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/manikosto/claude-code-python-stack/api-test-writer/github.svg)](https://agentmods.dev/agents/manikosto/claude-code-python-stack/api-test-writer)
Your own site
<a href="https://agentmods.dev/agents/manikosto/claude-code-python-stack/api-test-writer"><img src="https://agentmods.dev/badge/agents/manikosto/claude-code-python-stack/api-test-writer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for api-test-writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/manikosto/claude-code-python-stack/api-test-writer"><img src="https://agentmods.dev/badge/agents/manikosto/claude-code-python-stack/api-test-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,705 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00049 $0.02705
Opus 5.5 $0.00020 $0.01082
Sonnet 5.5 $0.00010 $0.00541
Haiku 4.5 $0.00005 $0.00270

Measured 1mo ago against content hash 4ebe13ff43cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

api-test-writer scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Direct `httpx.get()` / `requests.get()` without service class
agents/api-test-writer.md · 389 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 389 lines · 49 tokens per session scan A 4ebe13ff43cf

Subscribe to this mod's changes

api-test-writer is an agent published in the GitHub repository manikosto/claude-code-python-stack (51 stars, last pushed 6mo ago), with no licence file. It adds 49 tokens to every session and 2,705 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other agents, from other repositories

Salesforce Apex & Triggers Development

Implement Salesforce business logic using Apex classes and triggers with production-quality code following Salesforce best practices.

github/awesome-copilot · 26 tokens

API Tester Specialist

Specialist in creating and executing API tests. Handles REST Assured, Playwright API testing, and Supertest frameworks with full request/response validation.

fugazi/test-automation-skills-agents · 34 tokens

qa-executor

Executes QA test plans with detailed reporting. Specialized for API testing and event verification.

rlajous/claude-code-commands · 21 tokens

scaffolder

Scaffolds one service of a reimagined system from the approved architecture and spec — project skeleton, domain model, API stubs, executable acceptance tests. Write access is scoped to its own service directory under modernized/.

fuxicodex/Fuxi · 49 tokens

pact-coverage

Runs Pact consumer coverage. Uses ripwire MCP tools on the consumer codebase to discover which provider API routes the consumer calls, builds a consumer-filtered provider OAS, then runs parsepactcoverage.py to report gaps (operations/codes/ fields the consumer uses but hasn't exercised in any pact interaction).

pactflow/pactflow-agent-skills · 67 tokens

implement-agent

Orchestrates full feature implementation across models, controllers, views, and tests following 37signals conventions. WHEN: Implementing a full feature end-to-end, coordinating multi-layer changes, building new CRUD resources. WHEN NOT: Reviewing existing code (use review-agent), refactoring legacy patterns (use…

ThibautBaissac/rails_ai_agents · 74 tokens