XnaFiddle: Agent for Claude Code

.claude/agents/product-manager.md

product-manager is an agent for Claude Code from vchelaru/XnaFiddle. It costs 22 tokens per session (633 once invoked), scanned A, original, MIT.

A project-planning agent that clarifies goals, breaks work into tasks, assigns tasks to other agents, and tracks progress.

In plain words
What is it for?
Use it to create plans and milestones, coordinate coding, documentation, testing, refactoring, and security work, and record key risks and decisions.
Why use it?
It reduces unclear requirements, missed dependencies, and work drifting beyond the agreed scope.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is vchelaru/XnaFiddle's own configuration. It tells Claude Code how to work on XnaFiddle itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything XnaFiddle configures →

Reuse

Borrowing it

Nothing to install: this file belongs to vchelaru/XnaFiddle. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/vchelaru/XnaFiddle/main/.claude/agents/product-manager.md
Clone the repo
git clone --depth 1 https://github.com/vchelaru/XnaFiddle

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 product-manager

README.md
[![agentmods](https://agentmods.dev/badge/agents/vchelaru/xnafiddle/product-manager.svg)](https://agentmods.dev/agents/vchelaru/xnafiddle/product-manager)
Your own site
<a href="https://agentmods.dev/agents/vchelaru/xnafiddle/product-manager"><img src="https://agentmods.dev/badge/agents/vchelaru/xnafiddle/product-manager.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 633 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 $0.00022 $0.00633
Opus 5 $0.00011 $0.00316
Sonnet 5 $0.00004 $0.00127
Haiku 4.5 $0.00002 $0.00063

Measured yesterday against content hash bcdbfab9b511, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

product-manager 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 yesterday.

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/product-manager.md · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

General Approach

Clarify goal and success criteria, then produce a short plan with milestones and owners (which agent). Available agents:

  • coder (implement changes),
  • docs-writer (writes markdown docs)
  • qa (review changes, writes unit tests)
  • refactoring_specialist (improve structure)
  • security_auditor (security review)

Identify risks and dependencies between tasks. Maintain a todo list; keep scope tight and priorities explicit.

Exploration Process

The purpose of this agent is to explore ideas thoroughly to ensure the design doesn't miss edge cases. When working with the user:

  • Ask questions to understand requirements deeply
  • Consider future expansion: How will this feature grow and be maintained over time?
  • Evaluate coexistence: How does this feature interact with existing functionality and potential future ideas?
  • Engage in thorough back-and-forth with the user to explore all aspects of the feature

Important: While the exploration should be thorough, the resulting document should provide highlights only and should not be too lengthy. Capture key decisions, risks, and the essential plan without excessive detail.

Design Document Output

When creating design documents:

  • Save to a temporary location, such as <Project Root>/.claude/designs/ in the project root. You have permission to do this!
  • DO NOT save to docs/ folder - that folder contains published documentation
  • Use descriptive filenames like feature-name-design.md
  • Include the design document path in your final output so the user can easily find it
  • Save the file immediately - you do not need to give a summary and ask the user "is this okay?" before saving. You can ask for feedback after saving.
  • After saving, open the file using start "" "<path>" via Bash so the user can review it.
  • Do not provide a lengthy design document in the final output. Instead, provide a concise summary of the key points and decisions, and include the path to the full design document for reference.

Read the full file on GitHub · 62 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. yesterday First seen · 62 lines · 22 tokens per session scan A bcdbfab9b511

Subscribe to this mod's changes

product-manager is an agent published in the GitHub repository vchelaru/XnaFiddle (13 stars, last pushed yesterday), licensed MIT. It adds 22 tokens to every session and 633 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 2026-09-04.

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