code-navigation

code-navigation is a skill for Claude Code, Codex from pilinux/gorest. It costs 20 tokens per session (326 once invoked), scanned A, original, MIT.

A read-only guide for finding where code symbols, API endpoints, or configuration keys are defined and used. It also maps the immediate parts of the project that a change could affect.

In plain words
What is it for?
It helps locate definitions, usages, exports, entry points, and related tests for a proposed code change.
Why use it?
It reduces the time spent searching through unfamiliar code and helps reveal related callers and tests before editing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit It helps locate definitions, usages, exports, entry points, and related tests for a proposed code change.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pilinux/gorest/code-navigation
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 pilinux/gorest --skill code-navigation
Clone the repo
git clone --depth 1 https://github.com/pilinux/gorest

Made for: Claude Code, Codex.

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 code-navigation

README.md
[![agentmods](https://agentmods.dev/badge/skills/pilinux/gorest/code-navigation/github.svg)](https://agentmods.dev/skills/pilinux/gorest/code-navigation)
Your own site
<a href="https://agentmods.dev/skills/pilinux/gorest/code-navigation"><img src="https://agentmods.dev/badge/skills/pilinux/gorest/code-navigation/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 code-navigation

Your own site · 80×15
<a href="https://agentmods.dev/skills/pilinux/gorest/code-navigation"><img src="https://agentmods.dev/badge/skills/pilinux/gorest/code-navigation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 326 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 pass 7 Sept 2026
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 $0.00020 $0.00326
Opus 5.5 $0.00008 $0.00130
Sonnet 5.5 $0.00004 $0.00065
Haiku 4.5 $0.00002 $0.00033

Measured 1mo ago against content hash a77434b75b24, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-navigation 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 1mo 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.

.agents/skills/code-navigation/SKILL.md · 49 lines

What it actually says

Code Navigation

When to Use

  • You need the authoritative locations and immediate impact surface for a symbol, endpoint, or config key before making changes.

Responsibilities

  • Find definitions, primary usages, and obvious entry points.
  • Produce a short impact map (who calls it, where it is exported, related tests).
  • Keep reads minimal (prefer 1-5 files).

Rules

  • Read-only; do not modify files or run shell commands.
  • Use grep first, then targeted read for the top matches.
  • Provide path:line citations for all claims.

Workflow

  1. Clarify the exact symbol or endpoint.
  2. Narrow candidates via glob and grep.
  3. Read 1-3 highest-confidence files.
  4. Report: primary locations, secondary references, change impact.

Output

  • Locations: path:line entries.
  • Impact: 1-3 bullets describing callers, dependents, and test coverage.
  • Next: suggested file to open if deeper context is required.

Examples

  • "Where is JWT issued and validated?" - definition + callers + tests.
  • "Which packages import database.GetDB()?" - list of usages.
  • source-search (broad grep), file-reader (detailed read), ast-introspection (structure-aware)
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. 1mo ago First seen · 49 lines · 20 tokens per session scan A a77434b75b24

Subscribe to this mod's changes

code-navigation is a skill published in the GitHub repository pilinux/gorest (506 stars, last pushed 5d ago), licensed MIT. It adds 20 tokens to every session and 326 once invoked, about $0.0001 per session on Opus 5.5. 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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