slicing-code-context

slicing-code-context is a skill for Claude Code, Codex from OutlineDriven/odin-claude-plugin. It costs 54 tokens per session (2,483 once invoked), scanned A, original, Apache-2.0.

A focused code-reading guide that extracts only the relevant symbols, files, or line ranges for a narrowly defined question or patch proposal. It produces a bounded context package without changing source files.

In plain words
What is it for?
Preparing evidence for a focused code question or proposed patch when an exact code location is known.
Why use it?
It reduces irrelevant code reading and keeps delegated analysis tied to a precise part of the repository.

Skill for Claude CodeCodex

Part of the odin-code-advanced plugin — 50 skills shipped together

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 skills/outlinedriven/odin-claude-plugin/slicing-code-context
Any agent
npx skills add OutlineDriven/odin-claude-plugin --skill slicing-code-context
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-claude-plugin

Made for: Claude Code, Codex.

Or install odin-code-advanced, the plugin that ships this one along with the rest of its 50 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.

agentmods badge for slicing-code-context

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/slicing-code-context.svg)](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/slicing-code-context)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/slicing-code-context"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/slicing-code-context.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,483 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 $0.00054 $0.02483
Opus 5 $0.00027 $0.01241
Sonnet 5 $0.00011 $0.00497
Haiku 4.5 $0.00005 $0.00248

Measured yesterday against content hash a2d90f082c0d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

slicing-code-context 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 yesterday.

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/odin-code-advanced/skills/slicing-code-context/SKILL.md · 142 lines

How it starts

The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Slicing code context

Refuse first

  • Reject source mutation: this skill returns proposed edits but never applies them.
  • Reject broad or anchorless exploration: require an exact anchor and a focused task.
  • Reject lexical approximations when parser-backed graph analysis is unavailable.

Contract

Field Bound contract
Trigger A focused code question or patch proposal can be delegated using an exact symbol, path, entrypoint, or line-range anchor under a fixed source budget.
Authority Read-only: no file, VCS, credential, paid, published, deployed, or remote mutation.
Side effect A deterministic slice packet and one constrained worker response, with at most one coordinator-built replacement packet.
Done Packet budget and boundaries validate, every worker claim and proposed edit cites included ranges, uncertain edges remain hypotheses, and consequential conclusions are independently checked by the coordinator.

Inputs

  • Target source tree root (required): canonical directory containing the source to slice.
  • Anchor (required): one repository-relative FILE:START-END line range, one exact path, one fully qualified symbol, or one exact entrypoint.
  • Worker task (required): concrete question or patch proposal whose answer can be checked from source.
  • Mode and depth (optional): neighborhood depth 1 by default; upstream or downstream depth 2–4; path or entrypoint depth 10–20.
  • Peer anchor (required only for path): exact second symbol or line range.
  • Budget (optional): positive integer estimated-token limit, default 8192.

Procedure

  1. Validate the request. Canonicalize the target root. Reject an empty task, an anchor outside the root, an invalid or reversed line range, a mode/depth combination outside the table below, or path without a peer.

    Question Mode Depth
    Explain or review one unit with immediate context neighborhood 1 exactly
    Who can reach this sink? upstream 2–4
    What behavior can this entry trigger? downstream 2–4
    How does one unit reach another? path 10–20
    Which public entrypoint reaches this target? entrypoint 10–20

Read the full file on GitHub · 142 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. yesterday First seen · 142 lines · 54 tokens per session scan A a2d90f082c0d

Subscribe to this mod's changes

slicing-code-context is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (35 stars, last pushed today), licensed Apache-2.0. It adds 54 tokens to every session and 2,483 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 2026-09-04.

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