Borrowing it
Nothing to install: this file belongs to halvrenofviryel/phionyx-research. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/halvrenofviryel/phionyx-research/main/.claude/agents/diff-reviewer.mdgit clone --depth 1 https://github.com/halvrenofviryel/phionyx-researchWrote 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.
[](https://agentmods.dev/agents/halvrenofviryel/phionyx-research/diff-reviewer)<a href="https://agentmods.dev/agents/halvrenofviryel/phionyx-research/diff-reviewer"><img src="https://agentmods.dev/badge/agents/halvrenofviryel/phionyx-research/diff-reviewer.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00055 | $0.01343 |
| Opus 5 | $0.00028 | $0.00672 |
| Sonnet 5 | $0.00011 | $0.00269 |
| Haiku 4.5 | $0.00006 | $0.00134 |
Grade A, and why
diff-reviewer scanned grade A with 2 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- README / website / X article / commit message that asserts an external state (live URL, public repo, PyPI version) without that turn including the authoritative check (`gh repo view`, `curl -sI`, `pip index versions`). Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
- A CLI/script exits non-zero to signal a *data condition* (verification failed, coverage below target). Subprocess consumers (`execSync`, `subprocess.run(check=True)`) treat this as command failure even when stdout is v The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 8d ago First seen · 105 lines · 55 tokens per session scan A 2ac857d899a5
diff-reviewer is an agent published in the GitHub repository halvrenofviryel/phionyx-research (2 stars, last pushed today), licensed AGPL-3.0. It adds 55 tokens to every session and 1,343 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other agents, from other repositories
codedna-reviewer
CodeDNA compliance reviewer. Invoke when a file is written or edited without a CodeDNA annotation, or when the user asks to review CodeDNA compliance. Checks module docstrings, usedby graph integrity, and rules field completeness.
python-pro
Python 3.13 language expert for the ClosedLoop plugin monorepo. Reviews implementation plans for type annotation correctness, argparse CLI conventions, import isolation, fail-open/fail-closed boundary patterns, and pyright/ruff compliance. Produces type-patterns.md in legacy mode.
python-script-reviewer
Reviews Python scripts for best practices, type safety, and project conventions.
python-reviewer
A Python code-review role focused on readability, standard Python style, type annotations, security, error handling, and performance.
star-chamber
Advisory multi-LLM craftsmanship council. Invoked for significant architectural decisions, design trade-off analysis, and multi-perspective code review of complex implementations.
governance-reviewer
Use this agent when a major task has been completed and you want to assess governance state before continuing. Examples: Context: An agent finished a feature implementation. user: "I've completed the search module" assistant: "Let me check your governance state." After significant work, dispatch the…