# Implementation Plan

> >-

- **Type:** Skill
- **Install:** `agentstack add skill-greatmark-fable-field-guide-skills-implementation-plan`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [GreatMark](https://agentstack.voostack.com/s/greatmark)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [GreatMark](https://github.com/GreatMark)
- **Source:** https://github.com/GreatMark/fable-field-guide-skills/tree/main/skills/implementation-plan

## Install

```sh
agentstack add skill-greatmark-fable-field-guide-skills-implementation-plan
```

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

## About

# Implementation Plan

A plan's job is to surface the things the user might actually need to alter,
before changing them becomes expensive. Order it by likelihood of change, not
by execution order.

## Workflow

1. **Gather the inputs.** Collect what this plan is based on: the brainstorm,
   spec, prototype, or interview decisions from earlier in the conversation,
   plus a read of the code that will be touched.
2. **Sort by likelihood of change, not chronology.** Lead with the decisions
   the user is most likely to tweak:
   - data model and schema changes
   - new type interfaces and API shapes
   - anything user-facing (UX flows, copy, layout)
   Bury the mechanical refactoring at the bottom — the user trusts the agent
   on that part.
3. **Make the top decisions reviewable.** For each high-change-risk decision:
   the chosen option, 1-2 alternatives considered, and what changing it later
   would cost. This is what lets the user veto cheaply.
4. **Mark the improvisation zones.** Flag the areas where unknowns are likely
   to surface mid-implementation, and state the fallback posture for each
   (e.g. "pick the conservative option and log it").
5. **End with an explicit go/no-go.** Ask the user to approve, adjust, or
   reject. On approval, suggest starting implementation in a fresh session
   with this plan (and any prototypes) passed in as artifacts.

## Rules

- The plan is for review, not a contract — it should tell the reader where
  it is likely to be wrong.
- Do not start implementing in the same breath as presenting the plan.
- If a plan section would just restate the obvious ("write the code, run the
  tests"), cut it; length is not thoroughness.

## Source & license

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

- **Author:** [GreatMark](https://github.com/GreatMark)
- **Source:** [GreatMark/fable-field-guide-skills](https://github.com/GreatMark/fable-field-guide-skills)
- **License:** MIT

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-greatmark-fable-field-guide-skills-implementation-plan
- Seller: https://agentstack.voostack.com/s/greatmark
- 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%.