Vally Test Author

Vally Test Author is an agent for Claude Code from Peter-N91/hve-squad-mcp. It costs 73 tokens per session (2,036 once invoked), scanned A, original, MIT.

An agent that creates Vally conformance-test inputs from prompts, instruction files, agents, skills, or CSV and XLSX test collections. Vally tests check whether an agent follows an artifact's documented behavior.

In plain words
What is it for?
Use it to draft tests from an existing artifact or import a spreadsheet or CSV corpus, then append deduplicated stimulus blocks to the appropriate evaluation suite.
Why use it?
It makes test stimuli consistent and safer by applying refusal checks and removing duplicate entries before adding them to the correct evaluation file.

Agent for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: model in frontmatter; mentions subagents.

Good fit Use it to draft tests from an existing artifact or import a spreadsheet or CSV corpus, then append deduplicated stimulus blocks to the appropriate evaluation suite.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/peter-n91/hve-squad-mcp/vally-test-author
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/Peter-N91/hve-squad-mcp

Made for: Claude Code.

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 Vally Test Author

README.md
[![agentmods](https://agentmods.dev/badge/agents/peter-n91/hve-squad-mcp/vally-test-author/github.svg)](https://agentmods.dev/agents/peter-n91/hve-squad-mcp/vally-test-author)
Your own site
<a href="https://agentmods.dev/agents/peter-n91/hve-squad-mcp/vally-test-author"><img src="https://agentmods.dev/badge/agents/peter-n91/hve-squad-mcp/vally-test-author/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 Vally Test Author

Your own site · 80×15
<a href="https://agentmods.dev/agents/peter-n91/hve-squad-mcp/vally-test-author"><img src="https://agentmods.dev/badge/agents/peter-n91/hve-squad-mcp/vally-test-author.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,036 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 $0.00073 $0.02036
Opus 5 $0.00036 $0.01018
Sonnet 5 $0.00015 $0.00407
Haiku 4.5 $0.00007 $0.00204

Measured 8d ago against content hash c224a5e819d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Vally Test Author 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 8d 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.

host/cast/.github/agents/vally-test-author.agent.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vally Test Author

Authors Vally conformance test stimuli for prompts, instructions, agents, and skills in two modes: from-artifact and corpus-import. Drafts stimulus YAML, enforces the seven-category refusal taxonomy, deduplicates by SHA-256, and appends to the routed eval file.

Search for and apply content-policy-citation.instructions.md when drafting or importing eval stimuli. When the output is GitHub-visible or community-facing, also search for and apply the relevant community writing instructions for the context. Vally tests must not become policy-boundary probes or payload repositories.

Purpose

  • Purpose: produce well-formed Vally stimulus blocks that exercise behaviors an artifact already documents, then append them to the correct eval suite file with full safety and dedupe enforcement.
  • Scope: only the four supported artifact kinds — prompt, instructions, agent, skill.
  • Routing source of truth: the vally-tests skill's eval-suite routing reference. Targets are resolved per-kind from the skill at run time and never hardcoded.
  • Advisory-by-default: every emitted stimulus sets tags.advisory: true. Graduation to authoritative is out of scope and governed by evals/behavior-conformance/README.md (section ## Graduation policy).
  • This subagent does NOT:
    • Invoke the Vally CLI or run any test execution.
    • Author non-conformance tests, adversarial probes, jailbreak attempts, prompt-injection payloads, or red-team stimuli.
    • Author stimuli that elicit PII, secrets, hidden instructions, model-refusal text for scoring, or training-data reconstruction.
    • Put payload examples, paraphrased prohibited requests, or quoted flagged content into eval prompts, expected outputs, grader descriptions, reports, PR summaries, or issue comments.
    • Replace Responsible AI work — RAI screening lives in .github/instructions/rai-planning/rai-risk-classification.instructions.md.
    • Flip tags.advisory: false or graduate stimuli from advisory to authoritative.
    • Replace or rewrite existing stimulus blocks — writes are append-only.

Read the full file on GitHub · 105 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. 8d ago First seen · 105 lines · 73 tokens per session scan A c224a5e819d4

Subscribe to this mod's changes

Vally Test Author is an agent published in the GitHub repository Peter-N91/hve-squad-mcp (0 stars, last pushed today), licensed MIT. It adds 73 tokens to every session and 2,036 once invoked, about $0.0004 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 2026-09-03.

Related

Other agents, from other repositories

project-implementer

Implementation specialist - executes tasks from plans with TDD methodology, writes tests, and validates acceptance criteria. Use for executing phased implementation plans generated by attune:plan.

athola/claude-night-market · 38 tokens

sdd-init

Initialize project SDD context, testing capabilities, and skill registry.

Gentleman-Programming/gentle-pi · 17 tokens

python-pro

Write idiomatic Python code with advanced features like decorators, generators, and async/await. Optimizes performance, implements design patterns, and ensures comprehensive testing. Use PROACTIVELY for Python refactoring, optimization, or complex Python features.

echoVic/blade-code · 51 tokens

test-engineer

QA engineer operating on the "Prove-It" principle — if it works, prove it with a test. Use when writing tests for a new feature, filling coverage gaps, or validating that a bug fix won't regress. Can read, write and edit test files. Dispatch with Task tool for isolated test work.

felvieira/claude-skills-fv · 66 tokens

test-writer

Use this agent when the guild needs unit or integration tests written for implemented code. The test-writer implements the test-planner's test plan — reading the plan's Changed Files Inventory instead of re-analyzing the codebase — then writes and runs the tests. Spawned by the check-in skill when a test-writing task…

HirogaKatageri/hirokata · 77 tokens

implement-test-diversifier

Generates test suites from 4 different testing perspectives for comprehensive coverage.

eai-support/eai-gofer · 19 tokens