bottleneck-identifier

bottleneck-identifier is a skill for Claude Code from DamingDong/opencode-skills-hub. It costs 70 tokens per session (434 once invoked), scanned A, original, MIT.

A performance-testing guide for finding parts of a system that slow down or limit its performance.

In plain words
What is it for?
Use it when working with load tests, stress tests, benchmarks, or performance monitoring and need guidance, configurations, or validation.
Why use it?
It helps turn performance problems into a focused investigation instead of relying on guesswork.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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 skills/damingdong/opencode-skills-hub/bottleneck-identifier
Any agent
npx skills add DamingDong/opencode-skills-hub --skill bottleneck-identifier
Clone the repo
git clone --depth 1 https://github.com/DamingDong/opencode-skills-hub

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 bottleneck-identifier

README.md
[![agentmods](https://agentmods.dev/badge/skills/damingdong/opencode-skills-hub/bottleneck-identifier.svg)](https://agentmods.dev/skills/damingdong/opencode-skills-hub/bottleneck-identifier)
Your own site
<a href="https://agentmods.dev/skills/damingdong/opencode-skills-hub/bottleneck-identifier"><img src="https://agentmods.dev/badge/skills/damingdong/opencode-skills-hub/bottleneck-identifier.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 434 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 5.1 $0.00070 $0.00434
Opus 5 $0.00035 $0.00217
Sonnet 5 $0.00014 $0.00087
Haiku 4.5 $0.00007 $0.00043

Measured 6d ago against content hash ff84bda5ca45, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

bottleneck-identifier 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 6d 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.

skills/community/bottleneck-identifier/SKILL.md · 73 lines

What it actually says

Bottleneck Identifier

Overview

This skill provides automated assistance for bottleneck identifier tasks within the Performance Testing domain.

When to Use

This skill activates automatically when you:

  • Mention "bottleneck identifier" in your request
  • Ask about bottleneck identifier patterns or best practices
  • Need help with performance testing skills covering load testing, stress testing, benchmarking, and performance monitoring.

Instructions

  1. Provides step-by-step guidance for bottleneck identifier
  2. Follows industry best practices and patterns
  3. Generates production-ready code and configurations
  4. Validates outputs against common standards

Examples

Example: Basic Usage Request: "Help me with bottleneck identifier" Result: Provides step-by-step guidance and generates appropriate configurations

Prerequisites

  • Relevant development environment configured
  • Access to necessary tools and services
  • Basic understanding of performance testing concepts

Output

  • Generated configurations and code
  • Best practice recommendations
  • Validation results

Error Handling

Error Cause Solution
Configuration invalid Missing required fields Check documentation for required parameters
Tool not found Dependency not installed Install required tools per prerequisites
Permission denied Insufficient access Verify credentials and permissions

Resources

  • Official documentation for related tools
  • Best practices guides
  • Community examples and tutorials

Part of the Performance Testing skill category. Tags: performance, load-testing, k6, jmeter, benchmarking

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. 6d ago First seen · 73 lines · 70 tokens per session scan A ff84bda5ca45

Subscribe to this mod's changes

bottleneck-identifier is a skill published in the GitHub repository DamingDong/opencode-skills-hub (11 stars, last pushed 7mo ago), licensed MIT. It adds 70 tokens to every session and 434 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 2026-08-30.

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