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api-testing-exploratory-methodology

api-testing-exploratory-methodology is a skill for Claude Code, Codex from wahidyankf/ose-public. It costs 89 tokens per session (873 once invoked), scanned A, original, MIT.

A method for exploring a live REST or GraphQL API, which is a web service that accepts requests and returns data. It compares the API's behaviour with its contracts and specifications while avoiding destructive actions.

In plain words
What is it for?
It helps test status codes, error formats, pagination, repeated requests, GraphQL behaviour, performance, and security using planned exploration and documented findings.
Why use it?
It provides a systematic way to find incorrect responses, edge-case failures, authentication problems, consistency issues, and gaps between documentation and implementation.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

not rated 12repo today A scan 89 tokens original MIT

Good fit It helps test status codes, error formats, pagination, repeated requests, GraphQL behaviour, performance, and security using planned exploration and documented findings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wahidyankf/ose-public/api-testing-exploratory-methodology
View source ↗ wahidyankf/ose-public oseplatform.com
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.

Any agent
npx skills add wahidyankf/ose-public --skill api-testing-exploratory-methodology
Clone the repo
git clone --depth 1 https://github.com/wahidyankf/ose-public

Made for: Claude Code, Codex.

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-testing-exploratory-methodology

README.md
[![agentmods](https://agentmods.dev/badge/skills/wahidyankf/ose-public/api-testing-exploratory-methodology/github.svg)](https://agentmods.dev/skills/wahidyankf/ose-public/api-testing-exploratory-methodology)
Your own site
<a href="https://agentmods.dev/skills/wahidyankf/ose-public/api-testing-exploratory-methodology"><img src="https://agentmods.dev/badge/skills/wahidyankf/ose-public/api-testing-exploratory-methodology/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-testing-exploratory-methodology

Your own site · 80×15
<a href="https://agentmods.dev/skills/wahidyankf/ose-public/api-testing-exploratory-methodology"><img src="https://agentmods.dev/badge/skills/wahidyankf/ose-public/api-testing-exploratory-methodology.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 873 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 original 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 $0.00089 $0.00873
Opus 5.5 $0.00036 $0.00349
Sonnet 5.5 $0.00018 $0.00175
Haiku 4.5 $0.00009 $0.00087

Measured 2d ago against content hash 7ca02550ed24, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

api-testing-exploratory-methodology 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 2d 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.

to drive curl/GraphQL, contract-and-specs comparison.
.agents/skills/api-testing-exploratory-methodology/SKILL.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

API Testing: Exploratory Methodology

Methodology for hunting contract-conformance, functional, edge-case, auth, and consistency defects on a running REST or GraphQL API — the API-surface counterpart to the web tester triad.

Reference Modules

  1. Why This Agent Exists
  2. Inputs
  3. Relationship to Other Agents
  4. Non-Destructive Constraint — the hard rule.
  5. Session-Based Methodology — charters, tours, SFDIPOT, CRUSSPIC STMPL.
  6. Test Dimensions Checklist Part 1 and Part 2 — contract conformance, status codes, error envelopes, edge cases, auth, consistency, pagination, idempotency, GraphQL, performance, security.
  7. Mandatory Systematic Sweeps Part 1 and Part 2 — operation × property matrix, convention round-trip, declared-invariant conformance, self-completeness check.
  8. Driving the API and Contract Comparison — how to drive curl/GraphQL, contract-and-specs comparison.
  9. Spec-Gap Detection — proposing behaviours for specs/**.
  10. Defect Anatomy and Severity — AET-### anatomy, severity/priority scales.
  11. Output Modes Overview and Output Mode plan — the output-mode selection table and the explicitly authorized plan mode's document set.
  12. Output Modes delivery/local-tmp and Procedure — the other two output modes and the 10-step procedure summary.
  13. Quality Guidelines and Constraints

Read the full file on GitHub · 61 lines

Files

What ships with it

18 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 61 lines · 89 tokens per session scan A 7ca02550ed24

Subscribe to this mod's changes

api-testing-exploratory-methodology is a skill published in the GitHub repository wahidyankf/ose-public (12 stars, last pushed today), licensed MIT. It adds 89 tokens to every session and 873 once invoked, about $0.0004 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 2026-10-14.

Backend and APIsTestingTypeScripterpislamic-financemonoreponxsharia-compliant
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