command-repository-tests-implementer

command-repository-tests-implementer is an agent for Claude Code from voro6yov/spec-driven-development. It costs 41 tokens per session (5,277 once invoked), scanned A, original, Apache-2.0.

A test-writing agent that creates pytest integration tests for every required method in a command-side repository. Integration tests check that the repository works with its real database-related components.

In plain words
What is it for?
Use it to generate tests for repository methods from the aggregate's domain diagram and abstract interface.
Why use it?
It reduces the risk of missing repository behavior and adds only tests that are not already present.

Agent for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: model in frontmatter.

Part of the persistence-spec plugin — 2 skills, 23 agents shipped together

Good fit Use it to generate tests for repository methods from the aggregate's domain diagram and abstract interface.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/voro6yov/spec-driven-development/command-repository-tests-implementer
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/voro6yov/spec-driven-development

Made for: Claude Code.

Or install persistence-spec, the plugin that ships this one along with the rest of its 2 skills, 23 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 command-repository-tests-implementer

README.md
[![agentmods](https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/command-repository-tests-implementer/github.svg)](https://agentmods.dev/agents/voro6yov/spec-driven-development/command-repository-tests-implementer)
Your own site
<a href="https://agentmods.dev/agents/voro6yov/spec-driven-development/command-repository-tests-implementer"><img src="https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/command-repository-tests-implementer/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 command-repository-tests-implementer

Your own site · 80×15
<a href="https://agentmods.dev/agents/voro6yov/spec-driven-development/command-repository-tests-implementer"><img src="https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/command-repository-tests-implementer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,277 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00041 $0.05277
Opus 5.5 $0.00016 $0.02111
Sonnet 5.5 $0.00008 $0.01055
Haiku 4.5 $0.00004 $0.00528

Measured 12d ago against content hash 72a882266539, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

command-repository-tests-implementer 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 12d 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/persistence-spec/agents/command-repository-tests-implementer.md · 380 lines

How it starts

The opening of the file, as written. The whole thing — 380 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a command-repository tests implementer. Given an aggregate's <domain_diagram> and a project's <tests_dir>, write pytest integration tests for every @abstractmethod declared on the abstract Command<Aggregate>Repository. Do not ask for confirmation before writing.

Pattern doc (umbrella resolution). Resolve <patterns_dir> as the directory containing the persistence-spec:patterns umbrella SKILL.md (auto-loaded via this agent's frontmatter; its loaded context reveals its location). Before any test rendering, Read <patterns_dir>/repository-test-rules/index.md in full — it is the authoritative style guide for fixture usage, comparisons, and naming. If the folder is missing, abort with Error: pattern 'repository-test-rules' has no folder under the persistence-spec:patterns umbrella at <patterns_dir>.

The agent is append-only and idempotent: existing test functions are preserved; only missing ones are added. Method dispatch is signature-driven and mirrors @command-repository-implementer Step 6.

Arguments

  • <domain_diagram> (first argument): absolute path to the aggregate's domain Mermaid diagram (<dir>/<stem>.md).
  • <tests_dir> (second argument): absolute path to the project's tests directory (as resolved by @spec-core:target-locations-finder); must contain conftest.py and integration/conftest.py.

Path resolution. Derive the persistence command-repo spec file from <domain_diagram> per spec-core:naming-conventions: <command_spec_file> = <dir>/<stem>.persistence/command-repo-spec.md, where <dir> and <stem> are recovered from <domain_diagram> per the recovery table in that skill.

Output path

<tests_dir>/integration/<aggregate>/test_<aggregate>_repository.py

The directory is created if missing, with an empty __init__.py.

Path invariant. The parent directory is exactly <tests_dir>/integration/<aggregate>/ — one <aggregate> segment directly under integration/. Do not insert any intermediate segment (e.g. repositories/, or a mirror of the infrastructure/repositories/<aggregate>/ code layout). The query-side test_query_<aggregate>_repository.py (owned by @query-repository-tests-implementer) must be a sibling in this same directory.

Read the full file on GitHub · 380 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. 12d ago First seen · 380 lines · 41 tokens per session scan A 72a882266539

Subscribe to this mod's changes

command-repository-tests-implementer is an agent published in the GitHub repository voro6yov/spec-driven-development (5 stars, last pushed 12d ago), licensed Apache-2.0. It adds 41 tokens to every session and 5,277 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-04.