context-compression

context-compression is a cursor rule for Cursor from Oriolshhh/runware-image-mcp. It costs 9 tokens per session (383 once invoked), scanned A, original, MIT.

A method for shortening large logs, transcripts, or other context while preserving the facts needed to continue technical work.

In plain words
What is it for?
Use it when summarizing build or test logs, handing work to another person, or continuing near a context-window limit.
Why use it?
It prevents important failures, commands, file names, decisions, and risks from being lost when output is too long.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

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 rules/oriolshhh/runware-image-mcp/context-compression
Clone the repo
git clone --depth 1 https://github.com/Oriolshhh/runware-image-mcp

Made for: Cursor.

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 context-compression

README.md
[![agentmods](https://agentmods.dev/badge/rules/oriolshhh/runware-image-mcp/context-compression.svg)](https://agentmods.dev/rules/oriolshhh/runware-image-mcp/context-compression)
Your own site
<a href="https://agentmods.dev/rules/oriolshhh/runware-image-mcp/context-compression"><img src="https://agentmods.dev/badge/rules/oriolshhh/runware-image-mcp/context-compression.svg" alt="Measured on agentmods" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 383 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00009 $0.00383
Opus 5 $0.00005 $0.00192
Sonnet 5 $0.00002 $0.00077
Haiku 4.5 $0.00001 $0.00038

Measured 2d ago against content hash 19278a81df51, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

context-compression 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 2d 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.

.cursor/rules/context-compression.mdc · 46 lines

What it actually says

Skill: context-compression

Context Compression

Purpose

Reduce large logs, transcripts, and outputs to a compact summary that preserves every fact needed to continue the work.

When to use it

  • Long tool output, test logs, or build logs.
  • Handing off context near a context-window limit.

Instructions

  1. Preserve exact failures, commands, filenames, line numbers, and assertions.
  2. Preserve API changes, decisions, and open risks verbatim.
  3. Summarize repetitive or noisy passages; never drop a unique fact.
  4. Separate observed facts, inferences, and uncertainty.
  5. State explicitly what was omitted and why.

Output format

  • Facts (observed, exact).
  • Inferences (clearly labeled).
  • Open / uncertain.
  • Omitted (what was dropped and why).

Anti-patterns

  • Paraphrasing an error message and losing its exact text.
  • Presenting an inference as an observed fact.
  • "Compressing" by deleting information that is still needed.

Verification checklist

  • A new reader can identify the objective, current state, exact failures, decisions, constraints, modified files, verification results, and next action.
  • Repeated material is collapsed, while every unique fact remains.
  • Sensitive values are omitted or redacted without hiding that redaction occurred.

Apply context-discovery before broad scanning: use a supplied context capsule first; otherwise check context frontmatter freshness, read .agent/context/routing.md, load only relevant summaries, and verify critical claims against source.

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. 2d ago First seen · 46 lines · 9 tokens per session scan A 19278a81df51

Subscribe to this mod's changes

context-compression is a cursor rule published in the GitHub repository Oriolshhh/runware-image-mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 9 tokens to every session and 383 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 2026-09-03.

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