performance-profiling

performance-profiling is a skill for Claude Code, Codex from ldilov/harness-forge. It costs 17 tokens per session (152 once invoked), scanned A, original, GPL-3.0.

A skill for finding likely performance bottlenecks and converting performance work into measurable next steps.

In plain words
What is it for?
It is for profiling hotspots and planning follow-up performance work.
Why use it?
It gives performance investigations a concrete focus instead of relying on guesses about what is slow.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It is for profiling hotspots and planning follow-up performance work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ldilov/harness-forge/performance-profiling
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.

Any agent
npx skills add ldilov/harness-forge --skill performance-profiling
Clone the repo
git clone --depth 1 https://github.com/ldilov/harness-forge

Made for: Claude Code, Codex.

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 performance-profiling

README.md
[![agentmods](https://agentmods.dev/badge/skills/ldilov/harness-forge/performance-profiling/github.svg)](https://agentmods.dev/skills/ldilov/harness-forge/performance-profiling)
Your own site
<a href="https://agentmods.dev/skills/ldilov/harness-forge/performance-profiling"><img src="https://agentmods.dev/badge/skills/ldilov/harness-forge/performance-profiling/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 performance-profiling

Your own site · 80×15
<a href="https://agentmods.dev/skills/ldilov/harness-forge/performance-profiling"><img src="https://agentmods.dev/badge/skills/ldilov/harness-forge/performance-profiling.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 152 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 unknown 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 $0.00017 $0.00152
Opus 5 $0.00009 $0.00076
Sonnet 5 $0.00003 $0.00030
Haiku 4.5 $0.00002 $0.00015

Measured 6d ago against content hash 8a70ee93c33c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

performance-profiling 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/performance-profiling/SKILL.md · 37 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 37 lines · 17 tokens per session scan A 8a70ee93c33c

Subscribe to this mod's changes

performance-profiling is a skill published in the GitHub repository ldilov/harness-forge (5 stars, last pushed 3mo ago), licensed GPL-3.0. It adds 17 tokens to every session and 152 once invoked, about $0.0001 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 2026-09-03.

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