performance-bottlenecks

A performance-analysis feature that looks for delays and inefficient patterns in development tasks handled by agents. It examines execution time, agent use, resources, and operations.

In plain words
What is it for?
Use it to inspect completed task results, identify time, coordination, or resource bottlenecks, and review suggested improvements such as parallel execution or additional specialized agents.
Why use it?
It highlights problems such as work being done sequentially when it could run in parallel, unbalanced agent workloads, excessive operations, or limited memory and input/output capacity.

Command 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 commands/f-amine/vibe-stack/performance-bottlenecks
Clone the repo
git clone --depth 1 https://github.com/f-amine/vibe-stack

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 310 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00000 $0.00310
Opus 5 $0.00000 $0.00155
Sonnet 5 $0.00000 $0.00062
Haiku 4.5 $0.00000 $0.00031

Measured 2d ago against content hash 61e9e3a163b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

performance-bottlenecks 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 2d 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.

Origin

This is a copy

100% identical to performance-bottlenecks — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/commands/analysis/performance-bottlenecks.md · 59 lines

What it actually says

Performance Bottleneck Analysis

Purpose

Identify and resolve performance bottlenecks in your development workflow.

Automated Analysis

1. Real-time Detection

The post-task hook automatically analyzes:

  • Execution time vs. complexity
  • Agent utilization rates
  • Resource constraints
  • Operation patterns

2. Common Bottlenecks

Time Bottlenecks:

  • Tasks taking > 5 minutes
  • Sequential operations that could parallelize
  • Redundant file operations

Coordination Bottlenecks:

  • Single agent for complex tasks
  • Unbalanced agent workloads
  • Poor topology selection

Resource Bottlenecks:

  • High operation count (> 100)
  • Memory constraints
  • I/O limitations

3. Improvement Suggestions

Tool: mcp__claude-flow__task_results
Parameters: {"taskId": "task-123", "format": "detailed"}

Result includes:
{
  "bottlenecks": [
    {
      "type": "coordination",
      "severity": "high",
      "description": "Single agent used for complex task",
      "recommendation": "Spawn specialized agents for parallel work"
    }
  ],
  "improvements": [
    {
      "area": "execution_time",
      "suggestion": "Use parallel task execution",
      "expectedImprovement": "30-50% time reduction"
    }
  ]
}

Continuous Optimization

The system learns from each task to prevent future bottlenecks!

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. 2d ago First seen · 59 lines · 0 tokens per session scan A 61e9e3a163b2

Subscribe to this mod's changes

performance-bottlenecks is a command published in the GitHub repository f-amine/vibe-stack (21 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 310 tokens. A static security scan graded it A with 0 findings. It is 100% identical to performance-bottlenecks, differing in 0 lines, and is treated as a copy.