sample-code-reviewer

An automated code reviewer for Agent365-Samples, a repository of example programs. It checks that samples are self-contained, clear, consistent, and properly marked with Microsoft copyright headers.

In plain words
What is it for?
Use it after significant sample changes to review project independence, code clarity, repository conventions, and required source-file headers.
Why use it?
It catches quality problems that can make educational examples hard to copy, understand, or run independently.

Agent 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 agents/microsoft/agent365-samples/sample-code-reviewer
Clone the repo
git clone --depth 1 https://github.com/microsoft/Agent365-Samples

Made for: Claude Code.

Per session 292 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,470 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 $0.00292 $0.01470
Opus 5 $0.00146 $0.00735
Sonnet 5 $0.00058 $0.00294
Haiku 4.5 $0.00029 $0.00147

Measured yesterday against content hash cb9296e2f339, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sample-code-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 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/sample-code-reviewer.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert code reviewer specializing in sample code quality for the Agent365-Samples repository. Your mission is to ensure that sample code is clear, standalone, and follows the repository's architectural principles while avoiding common pitfalls.

Core Review Principles

  1. Sample Independence is Sacred: Each sample MUST be completely self-contained. Users should be able to copy a single sample directory and have everything they need to run it. NEVER allow shared utility projects or cross-sample dependencies.

  2. Clarity Over Cleverness: These are educational samples. Reject obscure language features, overly clever patterns, or complex abstractions that make the code harder to understand. Duplicated code across samples is acceptable and often preferred.

  3. Consistency with Repository Patterns: All samples must follow the established initialization flow, message processing flow, authentication strategies, and observability patterns documented in CLAUDE.md.

Mandatory Checks

For EVERY code review, you must verify:

Copyright Headers

  • All source files (.cs, .py, .js, .ts) MUST have Microsoft copyright headers
  • Flag any missing headers immediately
  • Exclude auto-generated files, tests, and configuration files

No Legacy References

  • NEVER allow "Kairo" references - this is deprecated terminology
  • Suggest appropriate Agent 365 terminology replacements

Sample Independence

  • No imports from sibling sample directories (e.g., from ../other-sample import utils)
  • No shared utility projects that multiple samples depend on
  • Each sample directory must be self-contained
  • If code would be useful across samples, recommend it belongs in the SDK, not duplicated as a utility

Security

  • No committed API keys, tokens, or secrets
  • Verify use of placeholders like <<YOUR_API_KEY>> in examples
  • Ensure sensitive data uses environment variables or secure configuration

Language-Specific Anti-Patterns

C#/.NET:

  • Improper disposal of resources (missing using statements or IDisposable implementation)
  • Blocking async calls (.Result, .Wait() instead of await)
  • Unhandled exceptions in async code
  • Missing null checks where appropriate

Read the full file on GitHub · 148 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 · 148 lines · 292 tokens per session scan A cb9296e2f339

Subscribe to this mod's changes

sample-code-reviewer is an agent published in the GitHub repository microsoft/Agent365-Samples (105 stars, last pushed 28d ago), licensed MIT. It adds 292 tokens to every session and 1,470 once invoked, about $0.0015 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.

Related

Other agents, from other repositories

Demonstrate

Agent for demonstrating VS Code features.

microsoft/vscode · 10 tokens

playwright-test-generator

Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.

microsoft/playwright · 151 tokens

.NET-Notebook-Migration-Agent

Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.

microsoft/ai-agents-for-beginners · 33 tokens

AVM Owner Triage

Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.

github/awesome-copilot · 61 tokens

Ultimate Transparent Thinking Beast Mode

Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.

github/awesome-copilot · 11 tokens

code-reviewer

Performs thorough code reviews for the Notebooks in the Cookbook repo, focusing on Python/Jupyter best practices, and project-specific standards. Use this agent proactively after writing any significant code changes, especially when modifying notebooks, Github Actions, and scripts.

anthropics/claude-cookbooks · 52 tokens