Stop guessing localhost ports. Deterministic CLI + MCP maps declared configs, OS listeners, and env URLs into .portmap.json — so AI agents know what actually runs. No LLM. Pairs with harness-score.
2 files for Claude Code, Codex and OpenCode: portmap, portmap AGENTS.md — 698 tokens loaded in every session.
AGENTS.md A 698 tok .claude/skills/portmap/SKILL.md A 37 tok These files are paladini/portmap's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.