test_coverage_check

A command that checks whether source-code changes on the current branch have matching tests in the tests/ folder. It reviews coverage gaps but does not write tests.

In plain words
What is it for?
Use it to review unit-test coverage for modified source files and identify gaps that need attention.
Why use it?
It helps find changed code that may not be tested before a merge. It also points out tests that cover old logic but miss new branches.

Command for Claude Code

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 commands/osiris-devworks/smart-citizen/test_coverage_check
Clone the repo
git clone --depth 1 https://github.com/Osiris-DevWorks/smart-citizen

Made for: Claude Code.

Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 784 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 $0.00014 $0.00784
Opus 5 $0.00007 $0.00392
Sonnet 5 $0.00003 $0.00157
Haiku 4.5 $0.00001 $0.00078

Measured 2d ago against content hash 90912c157809, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

test_coverage_check 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 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.

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.

.claude/commands/test_coverage_check.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/test_coverage_check

For every source file modified on the current branch, decide whether it should have a unit test and whether that test exists or was updated. Surface gaps; don't auto-write tests.

Severities

  • Critical — non-exempt code (per the table below) with no matching test. Blocks merge in /pull_request.
  • Major — existing test covers an old branch of changed logic but does not exercise the new branch.
  • Minor — exempt code (workers, GUI wiring, scripts) flagged for manual attention so the user remembers to smoke-test.

Scoping the diff

git diff --name-only $(git merge-base HEAD origin/main)...HEAD

If origin/main is not the right baseline (e.g. on a release/X.Y.Z integration branch), use the integration branch as the base instead.

Coverage rules

Area Coverage requirement
src/utils/, src/parser/, src/merger/, src/models/ Required. New public functions, new classes, changed branching logic need new or updated tests in tests/.
Pure-Python helpers extracted from GUI: validate_applied_file, filter_entry_indices, markdown_to_html Required — these were specifically extracted so they could be tested without Qt.
src/gui/workers.py (QThread workers) Exempt. Needs pytest-qt (not a dev dep). Manual smoke testing is the documented path. Flag for human attention.
src/gui/*.py (widget layout, signal connections, MainWindow wiring) Exempt. Manual GUI testing only. Surface for review.
scripts/ Exempt. Manual CLI exercise. Surface for review.

Procedure

  1. Run the diff. Group the file list by area per the table above.
  2. For each non-exempt file, identify the new or changed callable (function/class). Check tests/ for a matching test (filename convention is test_<module>.py, function test_<callable>_<scenario>).
  3. For changed branching logic in existing code, confirm the existing test covers the new branch — read the test to verify, don't trust the filename alone.
  4. Run pytest tests/ and report pass/fail with the count.

Read the full file on GitHub · 66 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. 2d ago First seen · 66 lines · 14 tokens per session scan A 90912c157809

Subscribe to this mod's changes

test_coverage_check is a command published in the GitHub repository Osiris-DevWorks/smart-citizen (99 stars, last pushed 3d ago), licensed Apache-2.0. It adds 14 tokens to every session and 784 once invoked, about $0.0001 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 2026-08-30.