maintainer-test-adequacy-reviewer

maintainer-test-adequacy-reviewer is an agent for Claude Code from lantisprime/claude-sdlc. It costs 0 tokens per session (897 once invoked), scanned A, original, MIT.

A review agent that checks whether code changes have enough tests, including tests for changed behavior, edge cases, and failure paths.

In plain words
What is it for?
Use it before approving a build or pull request to review the current code changes and the test files changed with them.
Why use it?
It helps catch changes that appear tested but leave important behavior uncovered or rely on mocks that hide real production problems.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions Claude Code.

Part of the sdlc-plugin plugin — 18 skills, 16 commands, 10 agents, 4 hooks shipped together

Good fit Use it before approving a build or pull request to review the current code changes and the test files changed with them.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/lantisprime/claude-sdlc/maintainer-test-adequacy-reviewer
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/lantisprime/claude-sdlc

Made for: Claude Code.

Or install sdlc-plugin, the plugin that ships this one along with the rest of its 18 skills, 16 commands, 10 agents, 4 hooks.

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 maintainer-test-adequacy-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/lantisprime/claude-sdlc/maintainer-test-adequacy-reviewer/github.svg)](https://agentmods.dev/agents/lantisprime/claude-sdlc/maintainer-test-adequacy-reviewer)
Your own site
<a href="https://agentmods.dev/agents/lantisprime/claude-sdlc/maintainer-test-adequacy-reviewer"><img src="https://agentmods.dev/badge/agents/lantisprime/claude-sdlc/maintainer-test-adequacy-reviewer/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 maintainer-test-adequacy-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/lantisprime/claude-sdlc/maintainer-test-adequacy-reviewer"><img src="https://agentmods.dev/badge/agents/lantisprime/claude-sdlc/maintainer-test-adequacy-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 897 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 $0.00000 $0.00897
Opus 5 $0.00000 $0.00449
Sonnet 5 $0.00000 $0.00179
Haiku 4.5 $0.00000 $0.00090

Measured 10d ago against content hash 3ad5e4551893, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

maintainer-test-adequacy-reviewer 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 10d 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/agents/maintainer-test-adequacy-reviewer.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

maintainer-test-adequacy-reviewer

Maintainer-only Haiku 4.5 review agent. Reviews test adequacy for the current diff and writes a structured artifact. Read-only on the source tree; the only write is the artifact file.

When to invoke

Spawned by the maintainer (Claude Code session) when about to sign a Build gate file on this plugin repo, per sdlc-plugin/AGENT-RULES.md §14. Always invoked in parallel (single tool-call batch) with the other three maintainer review agents: maintainer-security-reviewer, maintainer-code-quality-reviewer, maintainer-dependency-reviewer.

Inputs

  • The current diff: git diff <base-sha>...HEAD against the PR base branch.
  • The touched test files: any test file present in the diff.
  • The plan artifact: .claude/sdlc/plans/<task-slug>.md (if present) for context on intended behavior.

Reads

  • The diff (production code changes).
  • The touched test files (in full).
  • The plan artifact (if present).

Checks

  1. Coverage of changed lines — every changed function or branch in production code has at least one corresponding test (modified or newly added).
  2. Missing edge cases — for each changed function: are boundary conditions tested (empty input, single element, max size, invalid type, off-by-one)?
  3. Missing failure-path tests — for each changed function that can fail: is the failure path tested with the expected error type and (where applicable) error message?
  4. Integration vs. unit balance — pure functions get unit tests; functions with I/O or external dependencies get either integration tests or carefully-mocked unit tests with a note that an integration test exists elsewhere.
  5. No production-masking mocks — mocks should not return values that the real implementation cannot. Flag any mock that hides a real-world failure mode the production code will see (e.g. a mocked HTTP client that always returns 200 when the real one can return 5xx and the code under test does not handle it).

Output

Write findings to .claude/sdlc/test/test-adequacy-review-<task-slug>.md. The <task-slug> is derived from the current Build gate filename.

Read the full file on GitHub · 69 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. 10d ago First seen · 69 lines · 0 tokens per session scan A 3ad5e4551893

Subscribe to this mod's changes

maintainer-test-adequacy-reviewer is an agent published in the GitHub repository lantisprime/claude-sdlc (3 stars, last pushed 4mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 897 tokens. 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.

Related

Other agents, from other repositories

ai-eval-engineer

Builds and maintains the eval pipeline for ai-system / agent-product archetypes. Outputs tests/eval/EVAL-.md files (golden citation, refuse-when-uncertain, output schema, prompt injection, cost-overrun, cross-user isolation). Runs regression on every prompt or model change. Detects drift.

avelikiy/great_cto · 71 tokens

performance-engineer

Performance specialist. Owns SLO/SLA budget design, load test execution (k6/Locust/Gatling), latency regression analysis, flame graph interpretation, and capacity planning. Runs after senior-dev, before QA. Writes docs/performance/PERF-{slug}.md. Activated when performance-sla is set in PROJECT.md, or archetype is…

avelikiy/great_cto · 83 tokens

mobile-app-builder

React Native implementer for Product-Builder products whose users work in the field (home-services dispatch, construction field-docs, field-booking, delivery). Builds the mobile app to the design-advisor's RN contract with TDD — offline-first sync, camera/photo + location capture, push notifications, and…

avelikiy/great_cto · 122 tokens

e2e-test-engineer

Use after qa-engineer passes and before/around devops deploy. Generates Playwright golden-path E2E specs (auth → create → pay) for the shipped product, then replays them against the LIVE URL as the post-deploy gate — replacing infra-provisioner's 3-ping smoke check with real user-journey proof.

avelikiy/great_cto · 76 tokens

senior-dev

Use to implement tasks from Beads backlog. Claims a task, implements with TDD, closes when done. Can run in parallel.

avelikiy/great_cto · 31 tokens

ai-prompt-architect

Designs and versions LLM system prompts for ai-system / agent-product archetypes. Outputs docs/adr/ADR-{NN}-PROMPT-{name}.md files with sha256-pinned prompt text, jailbreak resistance test cases, and revision history. Pairs with ai-eval-engineer for golden-set scenarios.

avelikiy/great_cto · 69 tokens