anti-slop

anti-slop is a skill for Claude Code from mattmre/EVOKORE-MCP-PUBLIC. It costs 56 tokens per session (1,258 once invoked), scanned A, original, MIT.

A checklist for finding wasteful patterns in an AI coding agent’s recent tool calls, such as reading the same file repeatedly.

In plain words
What is it for?
Use it to review agent transcripts, check whether files were reread after edits, spot repeated reads, and identify unnecessary shell commands.
Why use it?
It shows concrete ways a work session is consuming time and context without producing progress.

Skill for Claude Code

Written for Claude Code: PostToolUse hook event.

Good fit Use it to review agent transcripts, check whether files were reread after edits, spot repeated reads, and identify unnecessary shell commands.

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Install with agentmods
npx agentmods add skills/mattmre/evokore-mcp-public/anti-slop
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 mattmre/EVOKORE-MCP-PUBLIC --skill anti-slop
Clone the repo
git clone --depth 1 https://github.com/mattmre/EVOKORE-MCP-PUBLIC

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 anti-slop

README.md
[![agentmods](https://agentmods.dev/badge/skills/mattmre/evokore-mcp-public/anti-slop/github.svg)](https://agentmods.dev/skills/mattmre/evokore-mcp-public/anti-slop)
Your own site
<a href="https://agentmods.dev/skills/mattmre/evokore-mcp-public/anti-slop"><img src="https://agentmods.dev/badge/skills/mattmre/evokore-mcp-public/anti-slop/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 anti-slop

Your own site · 80×15
<a href="https://agentmods.dev/skills/mattmre/evokore-mcp-public/anti-slop"><img src="https://agentmods.dev/badge/skills/mattmre/evokore-mcp-public/anti-slop.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,258 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 $0.00056 $0.01258
Opus 5 $0.00028 $0.00629
Sonnet 5 $0.00011 $0.00252
Haiku 4.5 $0.00006 $0.00126

Measured 12d ago against content hash a491770319b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

anti-slop 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 12d 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/EVOKORE EXTENSIONS/anti-slop/SKILL.md · 137 lines

How it starts

The opening of the file, as written. The whole thing — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Anti-Slop Skill

Use this skill when you want to audit a recent stretch of tool calls (your own, an agent's, or a session replay log) for wasteful patterns that burn context and time without producing work. The goal is to surface concrete violations, not give vague style advice.

This skill is paired with the anti-slop PostToolUse hook, which emits the same warnings to stderr in real time when EVOKORE_ANTISLOP_HOOK=true (or via a protection profile that enables it). Both surfaces share the same definitions of "slop" below.

Trigger

Apply this skill when:

  • About to start a new pass and want to check whether the previous segment was wasteful.
  • Reviewing a long autonomous-loop transcript before merging or summarizing.
  • Triaging why a session is slow or feels confused.
  • Operating with EVOKORE_ANTISLOP_HOOK=true and you see a stderr advisory and want to understand the underlying rule.

Do not apply it as a blocking gate. The hook is warning-only by design, and so is the skill.

The patterns

Pattern A — Re-read after edit

Reading a file immediately after Edit / Write / MultiEdit succeeded on it.

The Edit/Write tools error if the change failed; on a clean response the file already matches your new_string and the harness tracks file state for you. Re-reading just to "verify" burns context with no new information.

What to do instead: trust the edit. If you genuinely need to see a different region you didn't pre-load, read only the new offset/limit range. Do not re-read the whole file.

Pattern B — Repeated reads of the same path

Three or more consecutive Read calls on the same path with no Edit/Write between them.

This usually means you're looking for something you already saw and have lost track of, or you're paging through the file inefficiently. Either way, the third read costs you context that the first two should have answered.

What to do instead: scroll back in your own context to find the prior read. If you need a different range, jump there directly with offset/limit instead of re-reading from line 1.

Read the full file on GitHub · 137 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. 12d ago First seen · 137 lines · 56 tokens per session scan A a491770319b7

Subscribe to this mod's changes

anti-slop is a skill published in the GitHub repository mattmre/EVOKORE-MCP-PUBLIC (3 stars, last pushed 3mo ago), licensed MIT. It adds 56 tokens to every session and 1,258 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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