wakaru: Instructions file for Codex

AGENTS.md

wakaru AGENTS.md is an instructions file for Codex, OpenCode from pionxzh/wakaru. It costs 3,069 tokens per session, scanned A, original, Apache-2.0.

Project instructions for Wakaru, a Rust-based JavaScript decompiler that turns bundled or minified code into more readable modern JavaScript.

In plain words
What is it for?
Use them when learning the project, changing decompilation rules, working with its Rust packages, handling large inputs, or running tests.
Why use it?
They give contributors a starting point for understanding the project's structure, build process, testing requirements, and code-recovery pipeline.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Codex.

This is pionxzh/wakaru's own configuration. It tells Codex and OpenCode how to work on wakaru 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 wakaru configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pionxzh/wakaru. 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/pionxzh/wakaru/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/pionxzh/wakaru

Made for: Codex, OpenCode.

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 wakaru AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/pionxzh/wakaru/agents-md.svg)](https://agentmods.dev/instructions/pionxzh/wakaru/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/pionxzh/wakaru/agents-md"><img src="https://agentmods.dev/badge/instructions/pionxzh/wakaru/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,069 This file is loaded in full into every session.
When invoked 3,069 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.03069 $0.03069
Opus 5 $0.01535 $0.01535
Sonnet 5 $0.00614 $0.00614
Haiku 4.5 $0.00307 $0.00307

Measured yesterday against content hash 8a5a209b99da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

wakaru AGENTS.md scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

`cargo install cargo-nextest --locked` (or `curl -LsSf https://get.nexte.st/latest/<os> | tar zxf - -C $HOME/.cargo/bin`).
AGENTS.md · 201 lines

How it starts

The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Wakaru

Wakaru is a JavaScript decompiler that transforms minified/bundled code back into readable, modern ESNext. It extracts Bun single-file executable containers and unpacks bundles (webpack4/5, including Vercel ncc; Browserify, including Cocos Creator 2.x; Closure ModuleManager; SystemJS; esbuild/Bun; Metro; AMD/UMD; plus heuristic scope-hoisted splitting), restores transpiler helpers (Babel, TypeScript), and applies an ordered pipeline of rewrite rules to recover idiomatic source (the registry in crates/core/src/rules/pipeline.rs is the authoritative list). It can also experimentally recover Vue 3 SFC-like artifacts from compiled render modules (--vue-sfc).

Written in Rust using the SWC AST ecosystem. The workspace is split into five crates under crates/: core (internal engine), wakaru (the published Rust façade), cli, formatter, and wasm.

Understand the Project

Read docs/architecture.md first — pipeline flow, components, design patterns. It is the universal entry point. Then read by task, instead of reading everything:

Task Also read
Any code change docs/testing.md — test patterns, helpers, required verification
Finding source entry points docs/code-map.md — file lookup by subsystem
PR / branch review, handoff, or resuming research docs/reviewing.md — scope, evidence, ownership transfer, and research resumption; docs/testing.md#sharing-verification-results — reuse and invalidation of test evidence
Rule bugfix / snapshot regression docs/debugging.md — rule tracing, snapshot layers, fixture workflow
New rule, or moving a rule docs/rule-dependency-inventory.md — ordering rationale, fragile edges; docs/rewrite-assumptions.md — level gating, named assumptions
Transpiler helper work docs/helper-detection.md — detection design and what was already rejected
Detection, unpacking, or scope-hoisted splitting docs/unpacking.md — format shapes, factory normalization, raw/multi-input behavior, and fallback boundaries
Cross-module recovery docs/fact-system.md — the two-phase barrier, module facts, and same-module proof boundaries
Bun single-file executables docs/bun-standalone.md — binary graph format, CLI flow, safety, and public API limits
Public Rust API (wakaru crate) docs/public-api.md — design decisions and boundaries; rustdoc (cargo doc -p wakaru) is the behavioral contract
Vue SFC recovery (--vue-sfc) docs/vue-decompile.md — the recovery path and CLI behavior; docs/vue-sfc-recovery-status.md — experimental status and known gaps
Correctness / semantics questions docs/rewrite-assumptions.md, docs/test262-roundtrip.md
Before proposing a redesign docs/learnings/ — approaches already built, measured, and reverted
CLI flag or output changes docs/cli.md — the CLI reference and source of truth for behavior detail; skills/wakaru/SKILL.md — the agent skill (carries only what changes the commands an agent runs or how it reads output); docs-site/content/docs/reference/cli.mdx — the user-facing docs page. Keep all three in sync in the same commit
Agent / tool integration skills/wakaru/SKILL.md — CLI-based agent surface
Docs site content or deployment (docs-site/) docs/docs-site.md — basePath gotchas, deploy pattern, sync obligations, content conventions
Cutting a release docs/releasing.md

Read the full file on GitHub · 201 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. yesterday Changed · +20 lines · +342 tokens per session 8a5a209b99da
  2. 7d ago First seen · 181 lines · 2,727 tokens per session scan A 0f8ade664afc

Subscribe to this mod's changes

wakaru AGENTS.md is an instructions file published in the GitHub repository pionxzh/wakaru (982 stars, last pushed yesterday), licensed Apache-2.0. It adds 3,069 tokens to every session, about $0.0153 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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