Plan Tracking

Plan Tracking is a skill for Claude Code, Codex from niels-emmer/myace. It costs 27 tokens per session (658 once invoked), scanned A, original, MIT.

A written task tracker for multi-step coding sessions. It keeps the plan, completed steps, and remaining work visible as the task changes.

In plain words
What is it for?
Use it to break down work across files or systems, track progress, and hand an unfinished task to another agent or a later session.
Why use it?
It prevents subtasks from being forgotten and makes it easier to resume work without losing the original scope.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for aider. Also seen: mentions Codex; built for aider; mentions OpenCode.

Good fit Use it to break down work across files or systems, track progress, and hand an unfinished task to another agent or a later session.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/niels-emmer/myace/plan-tracking
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.

Any agent
npx skills add niels-emmer/myace --skill plan-tracking
Clone the repo
git clone --depth 1 https://github.com/niels-emmer/myace

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 Plan Tracking

README.md
[![agentmods](https://agentmods.dev/badge/skills/niels-emmer/myace/plan-tracking/github.svg)](https://agentmods.dev/skills/niels-emmer/myace/plan-tracking)
Your own site
<a href="https://agentmods.dev/skills/niels-emmer/myace/plan-tracking"><img src="https://agentmods.dev/badge/skills/niels-emmer/myace/plan-tracking/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Plan Tracking

Your own site · 80×15
<a href="https://agentmods.dev/skills/niels-emmer/myace/plan-tracking"><img src="https://agentmods.dev/badge/skills/niels-emmer/myace/plan-tracking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 658 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00027 $0.00658
Opus 5 $0.00014 $0.00329
Sonnet 5 $0.00005 $0.00132
Haiku 4.5 $0.00003 $0.00066

Measured 9d ago against content hash 81bdfd14b65c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Plan Tracking 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 9d 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.

collections/base/devops-engineer/skills/plan-tracking/SKILL.md · 28 lines

How it starts

The opening of the file, as written. The whole thing — 28 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

A multi-step task loses steps when its plan only exists in working memory — a subtask gets implicitly dropped, a "come back to this" note never gets revisited, or the scope quietly drifts without anyone noticing it drifted. Writing the plan down, and updating it as steps complete, makes progress and remaining work visible to the user and to any agent picking the task back up.

When to use it

Any task that will take more than roughly 3 sequential steps, spans multiple files or subsystems, or is likely to be interrupted and resumed. Not needed for a single, self-contained edit — the overhead isn't worth it for something that's done in one pass.

Steps / checklist

  1. Write the plan before starting, as a short ordered list of concrete steps — not vague phases like "implement the feature" but specific, checkable actions ("add the visibility column + migration", "update authorize_access to check it", "add tests for the new denial case"). If the environment has a structured todo/plan tool, use it; otherwise a plain markdown checklist in the working notes is fine.
  2. Keep exactly one step marked in-progress at a time. This makes it obvious, at a glance, what's actually being worked on right now versus what's queued.
  3. Update state as you go, not in a batch at the end. Mark a step complete the moment it's actually done (built, run, confirmed) — not before, and not deferred until a later "cleanup the tracking" pass that may not happen.
  4. Surface scope changes explicitly. If a step turns out to need sub-steps that weren't in the original plan, add them to the visible plan rather than silently expanding scope and hoping it's fine.
  5. Never mark a step done that isn't. A step is complete when it's actually been verified to work, not when the code for it has been written. Marking things done prematurely defeats the entire purpose of tracking — it becomes a list that can't be trusted.
  6. On handoff or session end, leave the plan in a state a fresh reader can act on — what's done, what's in progress, what's still pending, and any blocker that's stalling progress. Pair this with the memory-system skill's decision log if the session is ending and the task isn't finished.

Read the full file on GitHub · 28 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. 9d ago First seen · 28 lines · 27 tokens per session scan A 81bdfd14b65c

Subscribe to this mod's changes

Plan Tracking is a skill published in the GitHub repository niels-emmer/myace (1 stars, last pushed 5d ago), licensed MIT. It adds 27 tokens to every session and 658 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 2026-09-03.

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