A Git commit assistant that groups code changes by theme and links commits to Spex memory items, such as requirements and decisions.

Use it when committing changes, including with requests such as “commit my changes” or “save this to git”.

It helps turn a mixed set of file changes into logically organised commits with related project context.

How ran729/context-rot-skill configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to ran729/context-rot-skill. 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/ran729/context-rot-skill/main/.claude/.claude/skills/spex-commit/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/ran729/context-rot-skill

Made for: Claude Code.

Or install context-rot, the plugin that ships this one along with the rest of its 8 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ran729/context-rot-skill/spex-commit/github.svg)](https://agentmods.dev/skills/ran729/context-rot-skill/spex-commit)

Your own site

<a href="https://agentmods.dev/skills/ran729/context-rot-skill/spex-commit"><img src="https://agentmods.dev/badge/skills/ran729/context-rot-skill/spex-commit/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ran729/context-rot-skill/spex-commit"><img src="https://agentmods.dev/badge/skills/ran729/context-rot-skill/spex-commit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,576 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00064	$0.03576
Opus 5.5	$0.00026	$0.01430
Sonnet 5.5	$0.00013	$0.00715
Haiku 4.5	$0.00006	$0.00358

Measured 2mo ago against content hash dd313abeb026, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

spex-commit 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 2mo 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.

.claude/.claude/skills/spex-commit/SKILL.md · 259 lines

The source is not reproduced here

No licence file

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.

2mo ago First seen · 259 lines · 64 tokens per session scan A dd313abeb026

Subscribe to this mod's changes

spex-commit is a skill published in the GitHub repository ran729/context-rot-skill (2 stars, last pushed 8mo ago), with no licence file. It adds 64 tokens to every session and 3,576 once invoked, about $0.0003 per session on Opus 5.5. 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.

Commits Git and workflow

spex-commit next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
spex-commitran729/context-rot-skill	Skill	2	8mo ago	none	A	64	Claude Code
create-prprisma/orm	Skill	48k	today	Apache-2.0	A	48	Claude Code, Codex
git-commitThinkInAIXYZ/deepchat	Skill	6.4k	yesterday	Apache-2.0	A	15	Claude Code, Codex
repo-syncdavidondrej/skills	Skill	4.3k	yesterday	MIT	A	25	Claude Code, Codex
engineer-bot-opsmakecindy/cindy	Skill	9.4k	today	Apache-2.0	A	57	Claude Code, Codex
mcore-split-prNVIDIA/skills	Skill	3.9k	today	Apache-2.0	A	25	Claude Code
git-commit-writermergisi/awesome-openclaw-agents	Skill	4.1k	3d ago	MIT	A	53	Claude Code, Codex

context-rot-skill: Skill for Claude Code