concurrent-change

concurrent-change is a skill for Claude Code from bfollington/terma. It costs 104 tokens per session (1,415 once invoked), scanned A, original, CC-BY-SA-4.0.

A skill for deciding how work can be split across multiple coding agents or carried out at the same time. It treats concurrency as a question of which parts need to agree with each other.

In plain words
What is it for?
Use it when delegating tasks, parallelising implementation, or deciding which changes can safely proceed independently.
Why use it?
It helps avoid parallel work that creates conflicts or depends on decisions another agent has not made yet.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the terma plugin — 18 skills, 6 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/bfollington/terma/concurrent-change
Any agent
npx skills add bfollington/terma --skill concurrent-change
Clone the repo
git clone --depth 1 https://github.com/bfollington/terma

Made for: Claude Code.

Or install terma, the plugin that ships this one along with the rest of its 18 skills, 6 agents.

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 concurrent-change

README.md
[![agentmods](https://agentmods.dev/badge/skills/bfollington/terma/concurrent-change.svg)](https://agentmods.dev/skills/bfollington/terma/concurrent-change)
Your own site
<a href="https://agentmods.dev/skills/bfollington/terma/concurrent-change"><img src="https://agentmods.dev/badge/skills/bfollington/terma/concurrent-change.svg" alt="Measured on agentmods" height="20"></a>
Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,415 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00104 $0.01415
Opus 5 $0.00052 $0.00707
Sonnet 5 $0.00021 $0.00283
Haiku 4.5 $0.00010 $0.00142

Measured 6d ago against content hash 6c18db043255, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

concurrent-change 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 6d 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.

plugins/terma/skills/concurrent-change/SKILL.md · 102 lines

The source is not reproduced here

Licensed CC-BY-SA-4.0

The repository is licensed CC-BY-SA-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 6d ago First seen · 102 lines · 104 tokens per session scan A 6c18db043255

Subscribe to this mod's changes

concurrent-change is a skill published in the GitHub repository bfollington/terma (51 stars, last pushed 7d ago), licensed CC-BY-SA-4.0. It adds 104 tokens to every session and 1,415 once invoked, about $0.0005 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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