What is xcstrings-crud CLAUDE.md?

Project instructions for xcstrings-crud, a Swift command-line tool and MCP server for editing Apple String Catalog files. String Catalogs are Xcode files that store app translations and their metadata.

Use them when adding or changing translation-file operations, Swift APIs, CLI commands, MCP support, or tests.

They explain how to build and test the project and where reading, writing, parsing, and MCP functionality belong.

How Ryu0118/xcstrings-crud configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Ryu0118/xcstrings-crud. 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/Ryu0118/xcstrings-crud/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/Ryu0118/xcstrings-crud

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ryu0118/xcstrings-crud/claude-md/github.svg)](https://agentmods.dev/instructions/ryu0118/xcstrings-crud/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/ryu0118/xcstrings-crud/claude-md"><img src="https://agentmods.dev/badge/instructions/ryu0118/xcstrings-crud/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/ryu0118/xcstrings-crud/claude-md"><img src="https://agentmods.dev/badge/instructions/ryu0118/xcstrings-crud/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 452 This file is loaded in full into every session.

When invoked 452 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00452	$0.00452
Opus 5.5	$0.00181	$0.00181
Sonnet 5.5	$0.00090	$0.00090
Haiku 4.5	$0.00045	$0.00045

Measured 15d ago against content hash 3beff4c16294, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

xcstrings-crud CLAUDE.md 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 15d 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.

CLAUDE.md · 45 lines

What it actually says

xcstrings-crud

CLI and MCP server for xcstrings (String Catalog) CRUD operations.

Build & Test

swift build           # Build all targets
swift test            # Run all tests
swift build -c release # Release build

Architecture

XCStringsKit/ - Core library (models, parser, reader, writer, stats)
XCStringsCLI/ - CLI commands using ArgumentParser (includes MCP subcommand)
XCStringsMCP/ - MCP server using swift-sdk
xcstrings-crud/ - CLI entry point (xcstrings-crud mcp for MCP server)

Code Style

Swift 6.0 with strict concurrency
Use async/await for async operations
Errors defined in Errors.swift, use XCStringsError enum
All public APIs should have clear parameter names
When documentation and the existing code disagree, follow the conventions used in the existing code, and in your final reply list every inconsistency you found between the documentation and the code.

Key Files

XCStrings.swift - Data models (StringCatalog, StringUnit, Xcode metadata fields, etc.)
XCStringsParser.swift - Facade for file operations, including multi-file untranslated checks
XCStringsReader.swift - Read operations (list, get, check), including key metadata, shouldTranslate == false handling, and untranslated issue detection for specific files and languages
XCStringsWriter.swift - Write operations (add, update, delete, rename)
XCStringsFileEncoder.swift - Deterministic xcstrings JSON encoding, byte-for-byte compatible with Xcode's xcstringstool
XCStringsKeySorter.swift - UTF-8 byte-order sorting for string catalog keys, matching xcstringstool
XCStringsStatsCalculator.swift - Coverage and progress stats; non-translatable keys are excluded from language totals

Testing

swift test --filter XCStringsKitTests  # Run specific test target

Tests use fixture-based approach. See TestFixtures.swift for test data generation.

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.

15d ago Changed · +1 lines · +36 tokens per session 3beff4c16294
1mo ago Changed · +16 tokens per session 38fb6a6404b0
2mo ago First seen · 44 lines · 400 tokens per session scan A 95476d40d111

Subscribe to this mod's changes

xcstrings-crud CLAUDE.md is an instructions file published in the GitHub repository Ryu0118/xcstrings-crud (26 stars, last pushed 3d ago), licensed MIT. It adds 452 tokens to every session, about $0.0018 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.

Localization

xcstrings-crud CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
xcstrings-crud CLAUDE.mdRyu0118/xcstrings-crud	Instructions file	26	3d ago	MIT	A	452	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,649	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

xcstrings-crud: Instructions file for Claude Code