obligation-test

obligation-test is a skill for Claude Code, Codex from postindustria-tech/agentic-toolkit. It costs 116 tokens per session (1,564 once invoked), scanned A, original, MIT.

A procedure for writing one behavioral test for each documented obligation, with six mechanically enforced quality rules.

In plain words
What is it for?
Selecting obligation IDs, researching their scenarios and production code, designing test strategies, and writing tests for a use case or limited number of obligations.
Why use it?
It turns requirements into a consistent test set and helps identify uncovered behavioral obligations.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the dev-practices plugin — 9 skills, 9 agents shipped together

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.

agentmods
npx agentmods add skills/postindustria-tech/agentic-toolkit/obligation-test
Any agent
npx skills add postindustria-tech/agentic-toolkit --skill obligation-test
Clone the repo
git clone --depth 1 https://github.com/postindustria-tech/agentic-toolkit

Made for: Claude Code, Codex.

Or install dev-practices, the plugin that ships this one along with the rest of its 9 skills, 9 agents.

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 obligation-test

README.md
[![agentmods](https://agentmods.dev/badge/skills/postindustria-tech/agentic-toolkit/obligation-test.svg)](https://agentmods.dev/skills/postindustria-tech/agentic-toolkit/obligation-test)
Your own site
<a href="https://agentmods.dev/skills/postindustria-tech/agentic-toolkit/obligation-test"><img src="https://agentmods.dev/badge/skills/postindustria-tech/agentic-toolkit/obligation-test.svg" alt="Measured on agentmods" height="20"></a>
Per session 116 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,564 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00116 $0.01564
Opus 5 $0.00058 $0.00782
Sonnet 5 $0.00023 $0.00313
Haiku 4.5 $0.00012 $0.00156

Measured 4d ago against content hash 88e73ec5a806, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

obligation-test scanned grade A with 0 findings 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 4d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/dev-practices/skills/obligation-test/SKILL.md · 185 lines

How it starts

The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Per-Obligation Test Derivation

Write one behavioral test per obligation with 6 hard quality rules enforced mechanically. Each obligation gets deep research (scenario + production code + test strategy) before any test code is written.

Args

/dev-practices-obligation-test UC-004-MAIN-01 UC-004-MAIN-02 UC-004-MAIN-03
/dev-practices-obligation-test UC-004 --count 10
/dev-practices-obligation-test UC-001-MAIN --count 15

Direct IDs: Space-separated obligation IDs. Each must be a behavioral obligation in your project's obligation documentation.

Prefix mode: A use-case prefix (e.g., UC-004, UC-001-MAIN). Auto-selects uncovered obligations from the allowlist matching the prefix. --count N limits how many (default: 10).

Protocol

Step 0: Resolve obligation IDs

If args look like a prefix (no trailing -NN sequence number):

python3 -c "
import json
al = json.loads(open('path/to/obligation_coverage_allowlist.json').read())
matches = sorted(oid for oid in al if oid.startswith('{prefix}'))
print(' '.join(matches[:N]))
print(f'Total matching: {len(matches)}, selected: {min(N, len(matches))}')
"

Store the resolved IDs for Step 1.

Step 1: Cook the molecule

python3 ${CLAUDE_PLUGIN_ROOT}/skills/dev-practices-execute/scripts/cook_formula.py \
  --formula ${CLAUDE_PLUGIN_ROOT}/skills/dev-practices-execute/formulas/obligation-test.yaml \
  --var "OBLIGATION_IDS={resolved_ids}" \
  --epic-title "Obligation tests: {prefix} batch N ({count} obligations)"

This creates: 1 setup atom + (4 atoms x N obligations) + 2 finalize atoms.

Step 2: Baseline (setup atom)

Run project quality command, record pass count, allowlist size, and coverage count in the epic notes. Close the baseline atom.

Step 3: Research all obligations (parallel)

All research atoms unblock after baseline. For each obligation:

  1. Read the scenario from obligation documentation. Extract: Given/When/Then, business rule, priority, layer.

  2. Translate Given/When/Then directly into the test:

    • Given -> test setup (fixtures, env configuration)
    • When -> action (call production function)
    • Then -> assertions (expected output/state)

Read the full file on GitHub · 185 lines

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. 4d ago First seen · 185 lines · 116 tokens per session scan A 88e73ec5a806

Subscribe to this mod's changes

obligation-test is a skill published in the GitHub repository postindustria-tech/agentic-toolkit (2 stars, last pushed 1mo ago), licensed MIT. It adds 116 tokens to every session and 1,564 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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