competition-bundle-sourcemap-recovery

competition-bundle-sourcemap-recovery is a skill for Codex from Asaiuta/reverse-workbench-skill. It costs 112 tokens per session (639 once invoked), scanned A, a copy of competition-bundle-sourcemap-recovery, MIT.

A specialized capture-the-flag (CTF) skill for reconstructing how a website's delivered JavaScript is organized and runs, using build files, chunk maps, and source maps. It is meant to run after the ctf-sandbox-orchestrator has established the authorized sandbox and evidence rules.

In plain words
What is it for?
Use it to map entry pages and loaded chunks, inspect source maps and manifests, trace obfuscated loaders, and prove which built asset produces a runtime behavior.
Why use it?
It helps distinguish the code actually served to users from repository source that may no longer match it.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Use it to map entry pages and loaded chunks, inspect source maps…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/asaiuta/reverse-workbench-skill/competition-bundle-sourcemap-recovery
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 Asaiuta/reverse-workbench-skill --skill competition-bundle-sourcemap-recovery
Clone the repo
git clone --depth 1 https://github.com/Asaiuta/reverse-workbench-skill

Made for: 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 competition-bundle-sourcemap-recovery

README.md
[![agentmods](https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-bundle-sourcemap-recovery.svg)](https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-bundle-sourcemap-recovery)
Your own site
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-bundle-sourcemap-recovery"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-bundle-sourcemap-recovery.svg" alt="Measured on agentmods" height="20"></a>
Per session 112 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 639 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 100% 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 $0.00112 $0.00639
Opus 5 $0.00056 $0.00319
Sonnet 5 $0.00022 $0.00128
Haiku 4.5 $0.00011 $0.00064

Measured 6d ago against content hash 8f89baa5ea28, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

competition-bundle-sourcemap-recovery 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 6d 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

100% identical to competition-bundle-sourcemap-recovery — 0 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.

CTF-Sandbox-Orchestrator/competition-bundle-sourcemap-recovery/SKILL.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competition Bundle Sourcemap Recovery

Use this skill only as a downstream specialization after $ctf-sandbox-orchestrator is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to $ctf-sandbox-orchestrator first.

Use this skill when runtime truth lives in built assets, source maps, chunk tables, or obfuscated loader flow rather than in checked-in source alone.

Reply in Simplified Chinese unless the user explicitly requests English.

Quick Start

  1. Start from the served artifact set: entry HTML, build manifest, bootstrap bundle, chunk map, and source maps.
  2. Record chunk ids, route chunks, loader functions, endpoint strings, and config keys before broad manual deobfuscation.
  3. Reconstruct the smallest runtime graph that explains which asset executes now.
  4. Keep served artifact truth separate from repository source unless parity is proven.
  5. Reproduce the smallest asset-to-runtime boundary that proves the decisive behavior.

Workflow

1. Map The Served Artifact Set

  • Record entry HTML, script tags, preload hints, manifest files, asset map, chunk registry, and source map URLs.
  • Note framework-specific artifacts such as route manifests, client reference manifests, or lazy-loader tables when present.
  • Keep emitted filenames, hash suffixes, and route ownership tied together.

2. Reconstruct Runtime Structure

  • Follow bootstrap code, chunk loaders, module registry, string decoders, and lazy import boundaries.
  • Use source maps, manifest files, and stable symbol clusters to recover route names, API calls, feature flags, and hidden panels.
  • Distinguish build-time intent from the bundle that is actively served now.

3. Reduce To The Decisive Bundle Path

  • Compress the result to the smallest sequence: served asset -> loader path -> module or symbol -> runtime effect.
  • State clearly whether the decisive weakness lives in manifest drift, chunk loading, hidden route code, string decoding, or stale source assumptions.
  • If the task shifts from built assets to SSR or template enforcement, hand back to the tighter template-render skill.

Read the full file on GitHub · 51 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 6d ago First seen · 51 lines · 112 tokens per session scan A 8f89baa5ea28

Subscribe to this mod's changes

competition-bundle-sourcemap-recovery is a skill published in the GitHub repository Asaiuta/reverse-workbench-skill (2 stars, last pushed 23d ago), licensed MIT. It adds 112 tokens to every session and 639 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to competition-bundle-sourcemap-recovery, differing in 0 lines, and is treated as a copy.

Related

Other skills, from other repositories

redteam-cors-miscfg-detail-pack

Domain routing and boundary guidance for authorized CORS misconfiguration testing, including reflected origins, null origins, subdomain trust, and credential exposure. Use when a task belongs to the CORS testing domain and needs scope, evidence, pivot, or exit criteria.

Netw0rkNoob/VulnClaw · 61 tokens

redteam-reverse-detail-pack

Domain routing and boundary guidance for authorized reverse engineering analysis, including decompilation, debugging, protocol reversing, firmware extraction, and deobfuscation. Use when a task belongs to the reverse engineering domain and needs scope, evidence, pivot, or exit criteria.

Netw0rkNoob/VulnClaw · 59 tokens

Reverse Engineering & Binary Analysis

Binary analysis, assembly interpretation, disassembly, decompilation, firmware RE, and protocol reverse engineering.

Masriyan/Claude-Code-CyberSecurity-Skill · 26 tokens

opencrow-reversing-toolbox

Use the best available portable Python runtime and installed reverse-engineering tooling for binary analysis, symbolic execution, disassembly, emulation, and binary patching. Prefer a detected ctf environment. Use when an agent needs angr, claripy, capstone, unicorn, ghidra-headless, radare2, objdump, strace, ltrace…

02loveslollipop/OpenCROW · 102 tokens

opencrow-pwn-toolbox

Use the best available portable Python runtime and installed exploit tooling for binary exploitation and runtime-debugging tasks. Prefer a detected ctf environment. Use when an agent needs pwntools, pwndbg, gdb, checksec, patchelf, qemu-user, pwninit, or other pwn-focused helpers.

02loveslollipop/OpenCROW · 82 tokens

reverse-shell-async

Manage one authorized inbound reverse-shell TCP session asynchronously without generating a callback payload. Use for CTF challenges, isolated labs, or systems you own when an agent must listen safely, exchange text or exact bytes, inspect captured output, and stop the named listener without blocking its main workflow.

02loveslollipop/OpenCROW · 61 tokens