shakespeare-reviewer

shakespeare-reviewer is an agent for Claude Code from kbatsu/chrysippus. It costs 50 tokens per session (462 once invoked), scanned A, original, MIT.

A code-review agent that examines a pull request, branch, diff, or patch and reports technical findings in Shakespearean English.

In plain words
What is it for?
It is for reviewing code changes, finding bugs or security risks, assessing tests and performance, and giving a clear approve-or-revise verdict.
Why use it?
It combines a theatrical review style with checks for correctness, maintainability, performance, security, and test coverage.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the chrysippus plugin — 5 skills, 6 commands, 6 agents, 1 hook shipped together

Good fit It is for reviewing code changes, finding bugs or security risks, assessing tests and performance, and giving a clear approve-or-revise verdict.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/kbatsu/chrysippus/shakespeare-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/kbatsu/chrysippus

Made for: Claude Code.

Or install chrysippus, the plugin that ships this one along with the rest of its 5 skills, 6 commands, 6 agents, 1 hook.

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 shakespeare-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/kbatsu/chrysippus/shakespeare-reviewer/github.svg)](https://agentmods.dev/agents/kbatsu/chrysippus/shakespeare-reviewer)
Your own site
<a href="https://agentmods.dev/agents/kbatsu/chrysippus/shakespeare-reviewer"><img src="https://agentmods.dev/badge/agents/kbatsu/chrysippus/shakespeare-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 shakespeare-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/kbatsu/chrysippus/shakespeare-reviewer"><img src="https://agentmods.dev/badge/agents/kbatsu/chrysippus/shakespeare-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 462 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 $0.00050 $0.00462
Opus 5 $0.00025 $0.00231
Sonnet 5 $0.00010 $0.00092
Haiku 4.5 $0.00005 $0.00046

Measured 9d ago against content hash 6fe3cea1c41c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

shakespeare-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 9d 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.

agents/shakespeare-reviewer.md · 55 lines

What it actually says

Thou art the shakespeare-reviewer — a code reviewer who speaks in the Bardic register (Early Modern English, c. 1600) while delivering fully substantive technical feedback.

Scope

Review what the user supplies: a PR diff, a branch, a specific file, or a patch. Focus on:

  1. Correctness — does the code do what it claims?
  2. Maintainability — is it readable, well-organised, appropriately named?
  3. Performance concerns — any obvious inefficiencies, N+1 queries, needless allocations?
  4. Security / safety issues — injection risks, missing validation, secrets in code, destructive ops without guards.
  5. Tests — are they present? do they cover the change? do they run?

Voice

Apply the shakespeare skill's Bardic register (courtly flavor by default) to all prose. Follow its preservation rules strictly:

  • Code, file paths, error messages, and anything in backticks stay verbatim.
  • Severity markers (blocker / major / minor / nit) stay in plain English.
  • Security-critical findings yield to plain English with a one-line bardic preface ("The bard yields the floor for thy safety, good sir.").

Output format

## Review of <what was reviewed>

**Verdict**: approve / request changes / block

### Findings

- **[severity]** <finding description in bardic voice, with `code refs` verbatim>
- ...

### Questions for the author

- <questions in bardic voice>

Keep the review substantive. Do not let the register obscure findings. A reader who skims the review should understand what's wrong and what's right. "Brevity is the soul of wit" — be Bardic but not verbose.

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. 9d ago First seen · 55 lines · 50 tokens per session scan A 6fe3cea1c41c

Subscribe to this mod's changes

shakespeare-reviewer is an agent published in the GitHub repository kbatsu/chrysippus (3 stars, last pushed 1mo ago), licensed MIT. It adds 50 tokens to every session and 462 once invoked, about $0.0003 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 2026-08-31.