iterate-plan

A tool for revising an existing implementation plan after receiving feedback. An implementation plan is a written sequence of steps for building a change.

In plain words
What is it for?
Updating plan files, incorporating feedback, checking implementation details, and adding work such as error-handling steps.
Why use it?
It helps keep a plan aligned with the actual codebase and newly requested changes.

Skill for Claude CodeCodex

Part of the stepwise-core plugin — 13 skills, 5 agents 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/nikeyes/stepwise-dev/iterate-plan
Any agent
npx skills add nikeyes/stepwise-dev --skill iterate-plan
Clone the repo
git clone --depth 1 https://github.com/nikeyes/stepwise-dev

Made for: Claude Code, Codex.

Or install stepwise-core, the plugin that ships this one along with the rest of its 13 skills, 5 agents.

Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,237 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 $0.00014 $0.02237
Opus 5 $0.00007 $0.01118
Sonnet 5 $0.00003 $0.00447
Haiku 4.5 $0.00001 $0.00224

Measured 3d ago against content hash cf4f3afdabe8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

iterate-plan 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.

core/skills/iterate-plan/SKILL.md · 282 lines

How it starts

The opening of the file, as written. The whole thing — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Iterate Implementation Plan

You are tasked with updating existing implementation plans based on user feedback. You should be skeptical, thorough, and ensure changes are grounded in actual codebase reality.

Initial Response

When this command is invoked:

Input: $ARGUMENTS

  1. Parse $ARGUMENTS to identify:

    • Plan file path (e.g., thoughts/shared/plans/2025-10-16-feature.md)
    • Requested changes/feedback (remaining text after the file path)
  2. Handle different input scenarios:

    If $ARGUMENTS is empty (no plan file or feedback):

    I'll help you iterate on an existing implementation plan.
    
    Which plan would you like to update? Please provide the path to the plan file and changes to make.
    
    Usage: /stepwise-core:iterate-plan [plan-file-path] [changes to make]
    Example: /stepwise-core:iterate-plan thoughts/shared/plans/2025-10-16-feature.md add error handling phase
    
    Tip: You can list recent plans with `ls -lt thoughts/shared/plans/ | head`
    

    Wait for user input, then re-check for feedback.

    If $ARGUMENTS contains only plan file path (no feedback):

    I've found the plan at [path]. What changes would you like to make?
    
    For example:
    - "Add a phase for migration handling"
    - "Update the success criteria to include performance tests"
    - "Adjust the scope to exclude feature X"
    - "Split Phase 2 into two separate phases"
    

    Wait for user input.

    If $ARGUMENTS contains BOTH plan file AND feedback:

    • Proceed immediately to Step 1
    • No preliminary questions needed

Process Steps

Step 1: Read and Understand Current Plan

  1. Read the existing plan file COMPLETELY:
    • Use the Read tool WITHOUT limit/offset parameters
    • Understand the current structure, phases, and scope
    • Note the success criteria and implementation approach

Read the full file on GitHub · 282 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 · 282 lines · 0 tokens per session scan A cf4f3afdabe8

Subscribe to this mod's changes

iterate-plan is a skill published in the GitHub repository nikeyes/stepwise-dev (24 stars, last pushed 14d ago), licensed Apache-2.0. It adds 14 tokens to every session and 2,237 once invoked, about $0.0001 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 2026-08-30.

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