codex-usage-tracker: Skill for Claude Code

.claude/skills/gitnexus/gitnexus-refactoring/SKILL.md

gitnexus-refactoring is a skill for Claude Code from douglasmonsky/codex-usage-tracker. It costs 53 tokens per session (969 once invoked), scanned A, a copy of gitnexus-refactoring, MIT.

A code-refactoring workflow for safely renaming, extracting, splitting, moving, or restructuring code with help from a dependency map.

In plain words
What is it for?
It helps rename symbols, extract modules, split services, move code, review the expected edits, and run relevant tests.
Why use it?
It shows which callers, implementations, interfaces, and tests may be affected before edits are made.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is douglasmonsky/codex-usage-tracker's own configuration. It tells Claude Code how to work on codex-usage-tracker itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything codex-usage-tracker configures →

Reuse

Borrowing it

Nothing to install: this file belongs to douglasmonsky/codex-usage-tracker. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/douglasmonsky/codex-usage-tracker/main/.claude/skills/gitnexus/gitnexus-refactoring/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/douglasmonsky/codex-usage-tracker

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.

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README.md
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Your own site
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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 gitnexus-refactoring

Your own site · 80×15
<a href="https://agentmods.dev/skills/douglasmonsky/codex-usage-tracker/gitnexus-refactoring"><img src="https://agentmods.dev/badge/skills/douglasmonsky/codex-usage-tracker/gitnexus-refactoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 969 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.
Origin 88% 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 $0.00053 $0.00969
Opus 5.5 $0.00021 $0.00388
Sonnet 5.5 $0.00011 $0.00194
Haiku 4.5 $0.00005 $0.00097

Measured 2mo ago against content hash 7ba5693ba034, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gitnexus-refactoring 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 2mo 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.

Origin

This is a copy

88% identical to gitnexus-refactoring — 32 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.

.claude/skills/gitnexus/gitnexus-refactoring/SKILL.md · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Refactoring with GitNexus

When to Use

  • "Rename this function safely"
  • "Extract this into a module"
  • "Split this service"
  • "Move this to a new file"
  • Any task involving renaming, extracting, splitting, or restructuring code

Workflow

1. impact({target: "X", direction: "upstream"})  → Map all dependents
2. query({search_query: "X"})                            → Find execution flows involving X
3. context({name: "X"})                           → See all incoming/outgoing refs
4. Plan update order: interfaces → implementations → callers → tests

If "Index is stale" → run gitnexus analyze --index-only . in terminal.

Checklists

Rename Symbol

- [ ] rename({symbol_name: "oldName", new_name: "newName", dry_run: true}) — preview all edits
- [ ] Review graph edits (high confidence) and text_search edits (review carefully)
- [ ] If satisfied: rename({..., dry_run: false}) — apply edits
- [ ] detect_changes() — verify only expected files changed
- [ ] Run tests for affected processes

Extract Module

- [ ] context({name: target}) — see all incoming/outgoing refs
- [ ] impact({target, direction: "upstream"}) — find all external callers
- [ ] Define new module interface
- [ ] Extract code, update imports
- [ ] detect_changes() — verify affected scope
- [ ] Run tests for affected processes

Split Function/Service

- [ ] context({name: target}) — understand all callees
- [ ] Group callees by responsibility
- [ ] impact({target, direction: "upstream"}) — map callers to update
- [ ] Create new functions/services
- [ ] Update callers
- [ ] detect_changes() — verify affected scope
- [ ] Run tests for affected processes

Tools

rename — automated multi-file rename:

rename({symbol_name: "validateUser", new_name: "authenticateUser", dry_run: true})
→ 12 edits across 8 files
→ 10 graph edits (high confidence), 2 text_search edits (review)
→ Changes: [{file_path, edits: [{line, old_text, new_text, confidence}]}]

Read the full file on GitHub · 122 lines

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. 2mo ago First seen · 122 lines · 53 tokens per session scan A 7ba5693ba034

Subscribe to this mod's changes

gitnexus-refactoring is a skill published in the GitHub repository douglasmonsky/codex-usage-tracker (196 stars, last pushed 15d ago), licensed MIT. It adds 53 tokens to every session and 969 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to gitnexus-refactoring, differing in 32 lines, and is treated as a copy.