# Write Plan

> Turn an approved spec into dependency-aware tasks with file scopes, acceptance mapping, and verification. Skip obvious small changes.

- **Type:** Skill
- **Install:** `agentstack add skill-bnet47-codexicon-write-plan`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [bnet47](https://agentstack.voostack.com/s/bnet47)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [bnet47](https://github.com/bnet47)
- **Source:** https://github.com/bnet47/codexicon/tree/main/.agents/skills/write-plan
- **Website:** https://bnet47.github.io/codexicon/repo-template-playbook.html

## Install

```sh
agentstack add skill-bnet47-codexicon-write-plan
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Write an implementation plan

Announce: "I'm using write-plan to turn the approved spec into verifiable implementation tasks."

## Inputs

Read the selected approved spec, relevant architecture and conventions, applicable ADRs, and the current target code. Do not assume the newest spec is the right one when several are present; identify it from the request or links.

## Task design

- Map every acceptance criterion to at least one task and verification step.
- Order tasks by real dependency. Identify tasks that are safe to run in parallel.
- Keep tightly coupled edits in one task. Do not split work to satisfy a time or file-count quota.
- Give each task the smallest coherent file scope and name existing interfaces precisely.
- Include migrations, compatibility behavior, error paths, and tests when required by the spec.
- Do not include commits, pushes, deployments, or external writes unless the approved scope explicitly authorizes them.

## Output

Save `agent_docs/plans/[YYYY-MM-DD]-[feature-slug]-plan.md`:

```markdown
# Implementation Plan: [Feature]

**Spec:** [relative link]
**Date:** [YYYY-MM-DD]

## Global constraints
- [Constraint all tasks must preserve.]

## Acceptance mapping
| Criterion | Task(s) | Evidence |
|---|---|---|
| AC-1 | 1, 3 | [test or inspection] |

### Task 1: [Coherent outcome]

**Depends on:** none | Task N  
**Parallel-safe with:** [task numbers or none]  
**Files:** create/modify/test exact paths  
**Behavior:** [complete expected behavior and error handling]  
**Interfaces:** [signatures, schemas, events, or commands]  
**Verification:** `[exact command]`  
**Done when:** [observable completion condition]
```

Self-review for spec coverage, stale paths, undefined interfaces, unsafe parallelism, placeholders, and runnable verification. Offer `$execute-plan` when delegation is useful; otherwise the primary agent can implement the plan directly.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [bnet47](https://github.com/bnet47)
- **Source:** [bnet47/codexicon](https://github.com/bnet47/codexicon)
- **License:** MIT
- **Homepage:** https://bnet47.github.io/codexicon/repo-template-playbook.html

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-bnet47-codexicon-write-plan
- Seller: https://agentstack.voostack.com/s/bnet47
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.