# Lcp Execplan > Create and maintain ExecPlans for complex work (design-to-implementation) following the repo's ExecPlan standard. Use when this capability is needed. - Skill: `tomevault-io/lcp-execplan` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/lcp-execplan` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/lcp-execplan/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/lcp-execplan --- Use this skill when the task is a complex feature, a significant refactor, or has ambiguous requirements that benefit from a living plan. ## Source of truth The ExecPlan standard for this repo is in: - `.codex/skills/lcp-execplan/references/PLANS.md` ## Workflow 1. Read the full reference `PLANS.md` above (it is intentionally strict). 2. Create a single ExecPlan file as instructed (formatting rules matter). 3. Keep the ExecPlan as a living document: update Progress/Decisions/Discoveries as you implement. 4. Do not ask the user for “next steps” mid-execution; proceed milestone by milestone. ## Acceptance An ExecPlan is done only when it enables a complete novice (with only the repo + the plan) to reproduce a working, observable outcome. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/yusukeshimizu) — claim your Tome and manage your conversions.