savant-perf-detect

savant-perf-detect is a command for Claude Code from rlaope/claude-code-savant. It costs 7 tokens per session (160 once invoked), scanned A, original, MIT.

A command for investigating unusual application performance. It sends a performance question to an agent that examines slow queries, latency spikes, and resource contention.

In plain words
What is it for?
Use it to investigate slow database queries, interpret EXPLAIN ANALYZE or trace results, recommend fixes, and define monitoring or performance checks.
Why use it?
It turns a vague report of slowness into an evidence-based timeline, likely cause, and proposed remedy.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

Part of the claude-code-savant plugin — 29 commands, 1 MCP server shipped together

Good fit Use it to investigate slow database queries, interpret EXPLAIN ANALYZE or trace results, recommend fixes, and define monitoring or performance checks.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/rlaope/claude-code-savant/savant-perf-detect
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/rlaope/claude-code-savant

Made for: Claude Code.

Or install claude-code-savant, the plugin that ships this one along with the rest of its 29 commands, 1 MCP server.

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 savant-perf-detect

README.md
[![agentmods](https://agentmods.dev/badge/commands/rlaope/claude-code-savant/savant-perf-detect.svg)](https://agentmods.dev/commands/rlaope/claude-code-savant/savant-perf-detect)
Your own site
<a href="https://agentmods.dev/commands/rlaope/claude-code-savant/savant-perf-detect"><img src="https://agentmods.dev/badge/commands/rlaope/claude-code-savant/savant-perf-detect.svg" alt="Measured on agentmods" height="20"></a>
Per session 7 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 160 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 $0.00007 $0.00160
Opus 5 $0.00003 $0.00080
Sonnet 5 $0.00001 $0.00032
Haiku 4.5 $0.00001 $0.00016

Measured 8d ago against content hash b999a344cea2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

savant-perf-detect 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.

commands/savant-perf-detect.md · 33 lines

What it actually says

Performance Detection - Performance Detective

$ARGUMENTS

Your Task

Analyze the provided question using the Performance Detective (Performance Detection Expert) persona.

Execution

Delegate to Performance Detective agent:

Task tool:
- subagent_type: "claude-code-savant:performance-detective"
- prompt: [User's performance investigation request]

Response Requirements

Performance Detective will provide:

  • Incident timeline with evidence correlation
  • Root cause analysis (slow queries, latency spikes, resource contention)
  • EXPLAIN ANALYZE / trace interpretation
  • Fix recommendation with effort/impact/risk
  • Prevention strategy (monitoring, CI gates, performance budgets)

Return the agent's analysis directly to the user.

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 · 33 lines · 7 tokens per session scan A b999a344cea2

Subscribe to this mod's changes

savant-perf-detect is a command published in the GitHub repository rlaope/claude-code-savant (2 stars, last pushed 6mo ago), licensed MIT. It adds 7 tokens to every session and 160 once invoked, about $0.0000 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.