executing-a-plan-step-by-step

executing-a-plan-step-by-step is a skill for Claude Code, Codex from redhuntlabs/wizard. It costs 31 tokens per session (1,244 once invoked), scanned A, original, MIT.

A workflow for carrying out a written software implementation plan one step at a time, checking each change before continuing.

In plain words
What is it for?
It is for executing multi-step development plans, verifying each step, diagnosing failures, and recording completed work and deviations.
Why use it?
It prevents later steps from hiding an earlier failure and makes it clear which parts of a plan are complete.

Skill for Claude CodeCodex

Part of the wizard plugin — 37 skills, 6 commands, 1 agent, 1 hook shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/redhuntlabs/wizard/executing-a-plan-step-by-step
Any agent
npx skills add redhuntlabs/wizard --skill executing-a-plan-step-by-step
Clone the repo
git clone --depth 1 https://github.com/redhuntlabs/wizard

Made for: Claude Code, Codex.

Or install wizard, the plugin that ships this one along with the rest of its 37 skills, 6 commands, 1 agent, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for executing-a-plan-step-by-step

README.md
[![agentmods](https://agentmods.dev/badge/skills/redhuntlabs/wizard/executing-a-plan-step-by-step.svg)](https://agentmods.dev/skills/redhuntlabs/wizard/executing-a-plan-step-by-step)
Your own site
<a href="https://agentmods.dev/skills/redhuntlabs/wizard/executing-a-plan-step-by-step"><img src="https://agentmods.dev/badge/skills/redhuntlabs/wizard/executing-a-plan-step-by-step.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,244 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00031 $0.01244
Opus 5 $0.00015 $0.00622
Sonnet 5 $0.00006 $0.00249
Haiku 4.5 $0.00003 $0.00124

Measured 3d ago against content hash a430efdb5859, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

executing-a-plan-step-by-step scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

spells/dev/executing-a-plan-step-by-step/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Executing a Plan Step by Step

What this does

Executes an implementation plan step-by-step with discipline: read what the step says, make the change, run the step's verification, mark done. On verification failure, stop and diagnose before moving on.

When to use

  • You have a written implementation plan (from writing-an-implementation-plan or equivalent)
  • You're starting or resuming execution
  • The plan has multiple steps with verifications

Do not use when

  • There's no written plan (write one first; see writing-an-implementation-plan)
  • The plan has no per-step verifications (fix the plan first)
  • You're doing exploratory work without a clear destination

What you bring (Inputs)

  • The written plan
  • Working dev environment
  • Any credentials/access the plan calls for

What you get (Output)

A completed implementation, plus an updated plan document with each step marked done and any deviations recorded.

How it works (Steps)

This is a chained workflow. Each step is a sub-cycle.

Stages

Stage 1: Pick up where you left off

Open the plan. Find the first step that's not marked done. If the plan has no marks yet, start at step 1.

If you're resuming after a break, re-read the steps that were already done — you need that context loaded back into your head.

Stage 2: Per-step cycle

For each step:

Step.A: Read the step in full

What does this step say to do? What does it say is the verification? What files does it touch?

If the step is unclear, do NOT improvise. Update the plan first to clarify, then execute the clarified step.

Step.B: Read the surrounding code

Before touching anything, read the file(s) the step affects in their current state. Skipping this is the #1 cause of "AI confidently wrote the wrong thing."

Step.C: Make the change

Make the smallest change that satisfies the step. Do NOT make adjacent improvements ("while I'm here..."). Adjacent changes go in a side notebook for later, not in this commit.

Read the full file on GitHub · 148 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 148 lines · 31 tokens per session scan A a430efdb5859

Subscribe to this mod's changes

executing-a-plan-step-by-step is a skill published in the GitHub repository redhuntlabs/wizard (9 stars, last pushed 4mo ago), licensed MIT. It adds 31 tokens to every session and 1,244 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.