← All skills

project-sizing-guide

95 / 100 · Low risk

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

By zebbern/claude-code-guide (GitHub) · coding · 4,704 stars · scanned at commit 84cb1c6

Software project effort estimation assistant. Outputs three-point estimates (optimistic/most-likely/pessimistic values with confidence intervals), T-shirt sizes, or Function Point Analysis (FPA) counts. Triggered when users ask 'how long will this feature take,' need to assess project workload, perform PERT estimation, T-shirt sizing, FPA, sprint planning, or quote-based effort breakdowns.

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/'project-sizing-guide' ] || [ -L ~/.agents/skills/'project-sizing-guide' ]; then echo 'A skill folder named project-sizing-guide already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/zebbern/claude-code-guide' "$d" && git -C "$d" checkout --quiet '84cb1c68461189c5a285948f95b5de20813c029b' -- 'skills/project-sizing-guide' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/project-sizing-guide' ~/.agents/skills/'project-sizing-guide' && 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/'project-sizing-guide' ~/.claude/skills/'project-sizing-guide' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

The badge for zebbern/claude-code-guide shows the score of its lowest-scoring skill.

[![SkillTrust](https://zalavijaysinh.github.io/skilltrust/badges/zebbern/claude-code-guide.svg)](https://zalavijaysinh.github.io/skilltrust/repos/zebbern/claude-code-guide/)

Score history