Estimate patient population and market size with explicit assumptions, evidence strength, and remaining uncertainty. Use when sizing is the question, for example 'how big is the market for X', 'how many patients are eligible'. Use financial-forecast when revenue projection assumptions are wanted, and indication-research for the broader disease picture.
Install
npx skills add MavenBio/maven-bio-plugin --skill size-marketnpx skills add MavenBio/maven-bio-plugin --skill size-market -a claude-code -gnpx skills add MavenBio/maven-bio-plugin --skill size-market -a codex -ggemini skills install https://github.com/MavenBio/maven-bio-plugin.git --path plugins/maven-bio/skills/size-marketgh skill install MavenBio/maven-bio-plugin size-marketgit clone --depth 1 https://github.com/MavenBio/maven-bio-plugin /tmp/MavenBio__maven-bio-plugin
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/MavenBio__maven-bio-plugin/plugins/maven-bio/skills/size-market ~/.claude/skills/size-market # Claude Code
cp -R /tmp/MavenBio__maven-bio-plugin/plugins/maven-bio/skills/size-market ~/.agents/skills/size-market # Codex, Cursor, Gemini CLI, Copilot, OpenCode