strategic-compact

strategic-compact is a skill for Claude Code from JSK9999/ai-nexus. It costs 27 tokens per session (460 once invoked), scanned B, a copy of strategic-compact, Apache-2.0.

A reminder system for manually shortening an agent’s working context at sensible points in a task. Context is the information the agent can keep available while working.

In plain words
What is it for?
Suggesting context compaction after exploration, completed milestones, or a set number of tool calls, using a pre-tool hook.
Why use it?
It reduces the chance of losing important details during automatic shortening in the middle of a complex task.

Skill for Claude Code

Written for Claude Code: PreToolUse hook event. Also seen: reads .claude/ paths.

Good fit Suggesting context compaction after exploration, completed milestones, or a set number of tool calls, using a pre-tool hook.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jsk9999/ai-nexus/strategic-compact
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 JSK9999/ai-nexus --skill strategic-compact
Clone the repo
git clone --depth 1 https://github.com/JSK9999/ai-nexus

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 strategic-compact

README.md
[![agentmods](https://agentmods.dev/badge/skills/jsk9999/ai-nexus/strategic-compact/github.svg)](https://agentmods.dev/skills/jsk9999/ai-nexus/strategic-compact)
Your own site
<a href="https://agentmods.dev/skills/jsk9999/ai-nexus/strategic-compact"><img src="https://agentmods.dev/badge/skills/jsk9999/ai-nexus/strategic-compact/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 strategic-compact

Your own site · 80×15
<a href="https://agentmods.dev/skills/jsk9999/ai-nexus/strategic-compact"><img src="https://agentmods.dev/badge/skills/jsk9999/ai-nexus/strategic-compact.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 460 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00027 $0.00460
Opus 5 $0.00014 $0.00230
Sonnet 5 $0.00005 $0.00092
Haiku 4.5 $0.00003 $0.00046

Measured 11d ago against content hash 1258d7208d76, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

strategic-compact scanned grade B with 1 finding 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 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (suggest-compact.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

Add to your `~/.claude/settings.json`:
Origin

This is a copy

100% identical to strategic-compact — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

config/skills/strategic-compact/SKILL.md · 64 lines

What it actually says

Strategic Compact Skill

Suggests manual /compact at strategic points in your workflow rather than relying on arbitrary auto-compaction.

Why Strategic Compaction?

Auto-compaction triggers at arbitrary points:

  • Often mid-task, losing important context
  • No awareness of logical task boundaries
  • Can interrupt complex multi-step operations

Strategic compaction at logical boundaries:

  • After exploration, before execution - Compact research context, keep implementation plan
  • After completing a milestone - Fresh start for next phase
  • Before major context shifts - Clear exploration context before different task

How It Works

The suggest-compact.sh script runs on PreToolUse (Edit/Write) and:

  1. Tracks tool calls - Counts tool invocations in session
  2. Threshold detection - Suggests at configurable threshold (default: 50 calls)
  3. Periodic reminders - Reminds every 25 calls after threshold

Hook Setup

Add to your ~/.claude/settings.json:

{
  "hooks": {
    "PreToolUse": [{
      "matcher": "tool == \"Edit\" || tool == \"Write\"",
      "hooks": [{
        "type": "command",
        "command": "~/.claude/skills/strategic-compact/suggest-compact.sh"
      }]
    }]
  }
}

Configuration

Environment variables:

  • COMPACT_THRESHOLD - Tool calls before first suggestion (default: 50)

Best Practices

  1. Compact after planning - Once plan is finalized, compact to start fresh
  2. Compact after debugging - Clear error-resolution context before continuing
  3. Don't compact mid-implementation - Preserve context for related changes
  4. Read the suggestion - The hook tells you when, you decide if
  • The Longform Guide - Token optimization section
  • Memory persistence hooks - For state that survives compaction
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 64 lines · 27 tokens per session scan B 1258d7208d76

Subscribe to this mod's changes

strategic-compact is a skill published in the GitHub repository JSK9999/ai-nexus (19 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 27 tokens to every session and 460 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). It is 100% identical to strategic-compact, differing in 0 lines, and is treated as a copy.

Related

Other skills, from other repositories

byterover

You MUST use this skill for: (1) 'Show me how ByteRover works', 'walk me through ByteRover', tour, intro, walkthrough, or onboarding requests — runs a guided 90-second introduction; (2) gathering contexts before any work; (3) saving knowledge after any change. ByteRover stores and retrieves project patterns…

campfirein/byterover-cli · 98 tokens

ai-history

Search and browse AI coding assistant chat history across providers (Claude Code, Codex CLI, Cursor). Find past conversations, inject historical context into the current session, and search across all chat records. Powered by the ai-history CLI tool.

jiantao88/ai-history · 52 tokens

ai-history

Search and browse AI coding assistant chat history across providers (Claude Code, Codex CLI, Cursor). Find past conversations, inject historical context into the current session, and search across all chat records. Use when asked to find past conversations, load context from previous sessions, or search chat history.

jiantao88/ai-history · 64 tokens

mnemon

Persistent memory CLI for LLM agents. Store facts, recall past knowledge, link related memories, manage lifecycle.

mnemon-dev/mnemon · 25 tokens

durable-session-state

Persist plans, scope decisions, evidence, and reviewer/critic verdicts to durable files during long or multi-phase tasks so work survives context compaction, session resumes, and handoffs. Use for swarm-mode tasks, before context grows large, when recording approval gates, and when resuming after compaction or a…

ZaxbyHub/opencode-swarm · 70 tokens

write-zot-themes

Help the user create, install, or package zot themes, including theme-only extensions.

patriceckhart/zot · 23 tokens