salience-splitter

salience-splitter is a skill for Claude Code from chrono-meta/forge-harness. It costs 96 tokens per session (4,153 once invoked), scanned A, original, MIT.

A tool for dividing an oversized file that is always loaded into a short essential file and a separate on-demand detail file. It can split a SKILL.md, CLAUDE.md, or memory index based on when information is needed.

In plain words
What is it for?
Use it to restructure agent instructions or memory, adding pointers from the essential content to the detailed content.
Why use it?
It keeps frequently loaded instructions focused while preserving details that are only needed for particular tasks.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is bash scripts/gate_pathspec_check.sh # exit 0 = known-pair coverage holds, 1 = a pair broke.

Part of the fh-meta plugin — 38 skills, 7 agents shipped together

Good fit Use it to restructure agent instructions or memory, adding pointers from the essential content to the detailed content.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/chrono-meta/forge-harness
agentmods
npx agentmods add skills/chrono-meta/forge-harness/salience-splitter

Made for: Claude Code.

Or install fh-meta, the plugin that ships this one along with the rest of its 38 skills, 7 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 salience-splitter

README.md
[![agentmods](https://agentmods.dev/badge/skills/chrono-meta/forge-harness/salience-splitter/github.svg)](https://agentmods.dev/skills/chrono-meta/forge-harness/salience-splitter)
Your own site
<a href="https://agentmods.dev/skills/chrono-meta/forge-harness/salience-splitter"><img src="https://agentmods.dev/badge/skills/chrono-meta/forge-harness/salience-splitter/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 salience-splitter

Your own site · 80×15
<a href="https://agentmods.dev/skills/chrono-meta/forge-harness/salience-splitter"><img src="https://agentmods.dev/badge/skills/chrono-meta/forge-harness/salience-splitter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,153 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 6
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
How audits are shown
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 $0.00096 $0.04153
Opus 5 $0.00048 $0.02076
Sonnet 5 $0.00019 $0.00831
Haiku 4.5 $0.00010 $0.00415

Measured 5d ago against content hash 4b5a66a02efb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

salience-splitter 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 5d 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/fh-meta/skills/salience-splitter/SKILL.md · 276 lines

How it starts

The opening of the file, as written. The whole thing — 276 lines — stays where its author put it; the contents beside it link to each section on GitHub.

salience-splitter — Governance-Semantic Context Split

Renamed from skill-splitter (2026-07-05). Old-name references still route here. The rename reflects the generalized scope: the split criterion applies to any always-loaded context asset — a SKILL.md, a CLAUDE.md, or a memory index — not only skills. The label now names the substance (salience-tiering of always-loaded context), not one instance of it. Dogfood: applied to a memory index 2026-07-05.

An always-loaded asset that holds everything in one layer is not simple — it is unscoped. The goal is a lean always-loaded layer + an on-demand layer, not one file and its appendix.

Scope (all three share one criterion — salience: what must be in attention every load):

  • SKILL.md → always-loaded SKILL.md + on-demand SKILL_detail.md
  • CLAUDE.md → lean rules + on-demand detail docs (imperative > **Detail**: See … pointers)
  • memory index → hot MEMORY.md + on-demand MEMORY_archive.md (cold/closed/superseded entries)

Trigger Phrases

Phrase Situation
"this skill is getting too long", "trim the skill", "split this SKILL.md" Direct split request
"context-doctor flagged this skill", "SKILL.md is bloated" Post-diagnosis split
"I can't see the key parts", "too much detail in the skill file" Readability problem
"separate the bash from the logic", "move the templates out" Structural refactor request
/salience-splitter Explicit invocation

Core Principle — Governance-Semantic Criterion

The split criterion is NOT length. It is: when does this content need to be in memory?

Layer When needed Examples
SKILL.md (always-loaded) Every invocation — session boundaries, trigger recognition, step overview, decision tables Triggers, principles, step names + criteria, key decision tables, Done When
SKILL_detail.md (on-demand) Only when executing a specific step Bash scripts, format templates, edge cases, step-by-step execution detail

Read the full file on GitHub · 276 lines

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. 5d ago Changed · -44 tokens per session 4b5a66a02efb
  2. 9d ago First seen · 276 lines · 140 tokens per session scan A ad7596e3f887

Subscribe to this mod's changes

salience-splitter is a skill published in the GitHub repository chrono-meta/forge-harness (14 stars, last pushed today), licensed MIT. It adds 96 tokens to every session and 4,153 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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