mcp-workspace: Skill for Claude Code

.claude/skills/plan_update/SKILL.md

plan_update is a skill for Claude Code from MarcusJellinghaus/mcp-workspace. It costs 7 tokens per session (199 once invoked), scanned A, original, MIT.

A workflow for updating implementation-plan files stored in a project’s pr_info/steps folder. It also records only the decisions that were actually discussed.

In plain words
What is it for?
Use it to make targeted updates to plan steps, log discussed decisions, preserve the existing structure, and revise summaries when the scope changes.
Why use it?
It keeps planning documents aligned with project discussions while limiting changes to the decisions and steps that have been agreed.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is MarcusJellinghaus/mcp-workspace's own configuration. It tells Claude Code how to work on mcp-workspace itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp-workspace configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MarcusJellinghaus/mcp-workspace. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/MarcusJellinghaus/mcp-workspace/main/.claude/skills/plan_update/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/MarcusJellinghaus/mcp-workspace

Made for: Claude Code.

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_update

README.md
[![agentmods](https://agentmods.dev/badge/skills/marcusjellinghaus/mcp-workspace/plan_update.svg)](https://agentmods.dev/skills/marcusjellinghaus/mcp-workspace/plan_update)
Your own site
<a href="https://agentmods.dev/skills/marcusjellinghaus/mcp-workspace/plan_update"><img src="https://agentmods.dev/badge/skills/marcusjellinghaus/mcp-workspace/plan_update.svg" alt="Measured on agentmods" height="20"></a>
Per session 7 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 199 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00007 $0.00199
Opus 5 $0.00003 $0.00100
Sonnet 5 $0.00001 $0.00040
Haiku 4.5 $0.00001 $0.00020

Measured 8d ago against content hash 1e50a2477cb6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

plan_update 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 8d 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.claude/skills/plan_update/SKILL.md · 28 lines

What it actually says

Update Plan Files

Update the implementation plan files in pr_info/steps based on our discussion.

Instructions

Update the plan by modifying the different files in folder pr_info/steps Please do targeted changes.

Please log the decisions from our discussion in pr_info/steps/Decisions.md. Only put those decisions that we discussed, no invented decisions. (For each decision that you log, consider whether you discussed it with me and when I said so)

Guidelines:

  • Make minimal, focused changes
  • Preserve existing structure where possible
  • Ensure consistency across all step files
  • Update the summary if scope changes
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. 8d ago First seen · 28 lines · 7 tokens per session scan A 1e50a2477cb6

Subscribe to this mod's changes

plan_update is a skill published in the GitHub repository MarcusJellinghaus/mcp-workspace (50 stars, last pushed today), licensed MIT. It adds 7 tokens to every session and 199 once invoked, about $0.0000 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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