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session-profiler

80 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By tamdogood/builder-essential-skills (GitHub) · coding · 227 stars · scanned at commit 1be9984

Profile and debug Hermes sessions from their JSONL transcripts. Find a session and its subagents, build a queryable event table, summarize the work as a hierarchical table of contents, break down wall time, inference, tools, tokens, and estimated cost per agent, identify errors and improvement opportunities, and export a shareable Perfetto trace. Use when a user wants to inspect what a Hermes session did, debug agent or subagent activity, understand session cost or latency, create a session tim…

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'session-profiler' ] || [ -L ~/.agents/skills/'session-profiler' ]; then echo 'A skill folder named session-profiler already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/tamdogood/builder-essential-skills' "$d" && git -C "$d" checkout --quiet '1be9984bdafbb68eaff400bdd82773a1d41ee7ec' -- 'skills/session-profiler' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/session-profiler' ~/.agents/skills/'session-profiler' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'session-profiler' ~/.claude/skills/'session-profiler' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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