update-plan

update-plan is a skill for Claude Code, Codex from kimgoetzke/coding-agent-configs. It costs 70 tokens per session (1,810 once invoked), scanned A, original, MIT.

A tool for updating planning documents after a user has answered questions in questions.md. It works with plans created by the planning or planning-mode skills.

In plain words
What is it for?
Use it to refresh an existing plan from questions.md, process a selected planning folder, or interactively ask for missing answers.
Why use it?
It turns the user's recorded answers into updates across the related planning documents and can ask unanswered questions when requested.

Skill for Claude CodeCodex

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/kimgoetzke/coding-agent-configs/update-plan
Any agent
npx skills add kimgoetzke/coding-agent-configs --skill update-plan
Clone the repo
git clone --depth 1 https://github.com/kimgoetzke/coding-agent-configs

Made for: Claude Code, Codex.

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 update-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/kimgoetzke/coding-agent-configs/update-plan.svg)](https://agentmods.dev/skills/kimgoetzke/coding-agent-configs/update-plan)
Your own site
<a href="https://agentmods.dev/skills/kimgoetzke/coding-agent-configs/update-plan"><img src="https://agentmods.dev/badge/skills/kimgoetzke/coding-agent-configs/update-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,810 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 $0.00070 $0.01810
Opus 5 $0.00035 $0.00905
Sonnet 5 $0.00014 $0.00362
Haiku 4.5 $0.00007 $0.00181

Measured 4d ago against content hash 04cf315b1b29, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

update-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 4d 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.

skills/update-plan/SKILL.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Update Plan from User Responses

Process user responses in questions.md and update all related planning documents accordingly.

Prerequisites

  • A plan must already exist under {repo root}/.ai/planning/ created by the planning or planning-mode skills
  • For default (non-ask) mode: the plan's questions.md must contain at least one question with a non-empty ### Response section
  • For ask mode: the plan's questions.md must contain at least one unprocessed question (with or without a response)

Argument parsing

The skill takes a single optional argument:

  • If the argument is the literal string ask (case-insensitive, trimmed) → enable ask mode and locate the plan via the Phase 1 strategies below (folder is not specified separately).
  • If the argument is anything else → treat it as a folder name (existing behaviour).
  • If the argument is empty → no mode flag and no folder; fall through to the Phase 1 strategies.

ask is standalone — it cannot be combined with a folder name on the same invocation. If the user needs ask mode against a specific plan in a multi-plan repo, the Phase 1 multi-plan prompt will let them choose.

Throughout the rest of this skill, ask mode refers specifically to the case where the argument was ask.

Phase 1: Locate the plan

Resolve the target plan using the first matching strategy:

  1. Context inference — check your conversation context for a plan folder path from a prior planning-mode/planning skill invocation in this session. If found, use it directly and confirm with the user (e.g. "Updating plan 2026-03-24 auth refactor — correct?"). Proceed on confirmation; if the user says no, fall through to the next strategy.
  2. User argument — if the user provided a non-ask argument, resolve it as a folder name against folders inside {repo root}/.ai/planning/. (The ask keyword is a mode flag, not a folder name — see "Argument parsing" above.)
  3. Single plan — if only one plan folder exists, select it automatically.
  4. Multiple plans — list folders newest first in a numbered list and ask the user to choose.
  5. No plans — tell the user no plans were found and suggest creating one with the planning-mode or planning skills.

Read the full file on GitHub · 124 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. 4d ago First seen · 124 lines · 70 tokens per session scan A 04cf315b1b29

Subscribe to this mod's changes

update-plan is a skill published in the GitHub repository kimgoetzke/coding-agent-configs (2 stars, last pushed 15d ago), licensed MIT. It adds 70 tokens to every session and 1,810 once invoked, about $0.0003 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.

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