tauri-command-contract

tauri-command-contract is a skill for Claude Code, Codex from JakubMikolajek/codex-skills-collection. It costs 51 tokens per session (740 once invoked), scanned A, original, MIT.

A set of rules for keeping Tauri v2 frontend calls and Rust command handlers in agreement. Tauri is a framework for building desktop apps with web interfaces and Rust code.

In plain words
What is it for?
Use it when adding or changing Tauri commands, request or response data, error formats, command registration, or tests that check the frontend-to-Rust boundary.
Why use it?
It helps prevent the frontend and Rust sides from drifting apart when command data, errors, names, or registration change.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when adding or changing Tauri commands, request or response data, error formats, command registration, or tests that check the frontend-to-Rust boundary.

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Install with agentmods
npx agentmods add skills/jakubmikolajek/codex-skills-collection/tauri-command-contract
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 JakubMikolajek/codex-skills-collection --skill tauri-command-contract
Clone the repo
git clone --depth 1 https://github.com/JakubMikolajek/codex-skills-collection

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 tauri-command-contract

README.md
[![agentmods](https://agentmods.dev/badge/skills/jakubmikolajek/codex-skills-collection/tauri-command-contract/github.svg)](https://agentmods.dev/skills/jakubmikolajek/codex-skills-collection/tauri-command-contract)
Your own site
<a href="https://agentmods.dev/skills/jakubmikolajek/codex-skills-collection/tauri-command-contract"><img src="https://agentmods.dev/badge/skills/jakubmikolajek/codex-skills-collection/tauri-command-contract/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 tauri-command-contract

Your own site · 80×15
<a href="https://agentmods.dev/skills/jakubmikolajek/codex-skills-collection/tauri-command-contract"><img src="https://agentmods.dev/badge/skills/jakubmikolajek/codex-skills-collection/tauri-command-contract.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 740 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 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 $0.00051 $0.00740
Opus 5 $0.00026 $0.00370
Sonnet 5 $0.00010 $0.00148
Haiku 4.5 $0.00005 $0.00074

Measured 12d ago against content hash bab622dc866e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

tauri-command-contract 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 12d 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.

skills/tauri-command-contract/SKILL.md · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tauri Command Contract

Use this skill when a task crosses the frontend/Rust boundary through Tauri commands.

When to Use

  • Adding or changing #[tauri::command] handlers in src-tauri
  • Modifying frontend invoke callsites or typed command wrappers
  • Changing command payload/response DTOs or error format
  • Refactoring command registration (generate_handler!) and command naming
  • Reviewing boundary regressions where frontend and Rust drifted out of sync

When NOT to Use

  • Task is only about window controls/titlebar behavior with no command contract changes (use tauri-window-shell)
  • Task is purely internal Rust logic with no Tauri command boundary
  • Task is only UI styling and interaction with no invoke path

Delivery Workflow

Tauri command contract progress:
- [ ] Step 1: Inventory touched commands and callsites
- [ ] Step 2: Define explicit DTOs for request/response at boundary
- [ ] Step 3: Normalize error envelope and map Rust errors intentionally
- [ ] Step 4: Verify command registration and frontend wrapper alignment
- [ ] Step 5: Add/adjust boundary tests (Rust + frontend invoke surface)

Core Rules

  • Treat each command as a versioned contract, not an internal function leak.
  • Keep command handlers thin: validate/parse, delegate to service, map output.
  • Avoid anonymous/loosely typed payloads at boundary; use explicit serializable DTOs.
  • Do not return raw infrastructure errors directly to frontend.
  • Keep command names stable and intention-revealing; avoid accidental renames.

Contract Pattern

  • Rust side:
    • define transport DTOs and explicit result shape
    • map domain/infrastructure errors to stable boundary error variants
  • Frontend side:
    • centralize invoke wrappers instead of scattering raw invoke(...) strings
    • type wrappers to shared command DTO shapes

Boundary checklist:

- [ ] Command name unchanged or migration path documented
- [ ] Request DTO shape explicit
- [ ] Response DTO shape explicit
- [ ] Error envelope stable and parseable by frontend
- [ ] Frontend wrapper updated in same change

Read the full file on GitHub · 84 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. 12d ago First seen · 84 lines · 51 tokens per session scan A bab622dc866e

Subscribe to this mod's changes

tauri-command-contract is a skill published in the GitHub repository JakubMikolajek/codex-skills-collection (5 stars, last pushed 7d ago), licensed MIT. It adds 51 tokens to every session and 740 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 2026-08-31.

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