LazyCodex is an agent harness for working on complex codebases, combining project memory, planning, execution, and completion checks inside Codex. It is for developers who want structured, repeatable assistance when handling substantial software projects. The catalogue contains the skills, hook, and MCP integration that provide its workflow inside Codex.
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.
npx skills add code-yeongyu/lazycodex --skill ultimate-browsinggit clone --depth 1 https://github.com/code-yeongyu/lazycodexWrote 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.
[](https://agentmods.dev/skills/code-yeongyu/lazycodex/ultimate-browsing)<a href="https://agentmods.dev/skills/code-yeongyu/lazycodex/ultimate-browsing"><img src="https://agentmods.dev/badge/skills/code-yeongyu/lazycodex/ultimate-browsing/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.
<a href="https://agentmods.dev/skills/code-yeongyu/lazycodex/ultimate-browsing"><img src="https://agentmods.dev/badge/skills/code-yeongyu/lazycodex/ultimate-browsing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high YARA Match · line 29 YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
- medium Rogue Agent · line 106 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00071 | $0.02716 |
| Opus 5.5 | $0.00028 | $0.01086 |
| Sonnet 5.5 | $0.00014 | $0.00543 |
| Haiku 4.5 | $0.00007 | $0.00272 |
Grade C, and why
ultimate-browsing scanned grade C with 2 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 4d 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
await browser.close() // then rm -rf the profile Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "https://r.jina.ai/https://weibo.com/<uid>/<pid>" # weibo via Jina How it starts
The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ultimate Browsing
Web access for the hosts the user's browser cannot open (WAF / 403 / Cloudflare / bot-scored pages) and for platforms with a native reader. Reading and interaction on a page the user's browser can open belong to the browser skill's attached engine, not here. Start at the cheapest tier that can reach the blocked host and climb only when it cannot:
Tier 1 — insane-search (headless extraction + WAF bypass) -> Tier 1.5 — agent-reach (platform-native APIs, esp. Chinese platforms) -> Tier 2 — a real browser through omowright from js eval: 2a the owned engine (a browser your code launches, CloakBrowser for stealth), 2b the attached engine (the user's own signed-in browser).
PHASE 0 — ROUTE FIRST (MANDATORY)
User request
|
+- a page the user's browser can open (read, click, screenshot, QA, login) NOT this skill (browser skill, attached engine)
+- simple search query ------------------------------ NOT this skill (use web-search)
|
+- URL blocked / 403 / Cloudflare / WAF ------------- TIER 1 insane-search
+- YouTube/Vimeo/TikTok subtitles or metadata ------- TIER 1 insane-search (yt-dlp)
+- archive snapshot of a dead or changed page ------- TIER 1 insane-search (surrogates, provenance-tagged)
|
+- Chinese platform (xhs/douyin/weibo/bilibili/v2ex/wechat) TIER 1.5 agent-reach
+- podcast transcript / stock forum ----------------- TIER 1.5 agent-reach
+- Twitter feed / LinkedIn profile / GitHub via CLI - TIER 1.5 agent-reach
|
+- Tier 1/1.5 returned empty or partial ------------- TIER 2 2a owned engine (stealth)
+- a blocked host that also needs a click, a scroll or a screenshot TIER 2 2a owned engine
+- the user's account on a host the owned engine cannot pass TIER 2 2b attached engine (their browser)
Read the matching reference before acting: references/insane-search/README.md, references/agent-reach/README.md, or references/chrome-stealth.md.
What ships with it
55 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.
- agents/openai.yaml 52 B
- ATTRIBUTION.md 2.5 KB
- engine/__init__.py 668 B runs code
- engine/__main__.py 4.8 KB runs code
- engine/AGENTS.md 10 KB
- engine/bias_check.py 7.1 KB runs code
- engine/curl_probe.py 2.4 KB runs code
- engine/executor.py 6.3 KB runs code
- engine/fetch_chain.py 13 KB runs code
- engine/referers.py 327 B runs code
- engine/result_schema.py 1.5 KB runs code
- engine/summary.py 1.2 KB runs code
- engine/surrogate.py 7.9 KB runs code
- engine/surrogates.yaml 2.3 KB
- engine/templates/package.json 349 B
- engine/templates/playwright_mobile_chrome.js 3.6 KB runs code
- engine/templates/playwright_real_chrome.js 5.6 KB runs code
- engine/tests/fixtures/amp_redirect_stub.html 323 B
- engine/tests/fixtures/search_interstitial.html 90 KB
- engine/tests/fixtures/wayback_available.json 246 B
- engine/tests/fixtures/wayback_snapshot.html 181 KB
- engine/tests/test_fetch_chain.py 2.7 KB runs code
- engine/tests/test_playwright_stealth.py 3.9 KB runs code
- engine/tests/test_playwright_templates.py 11 KB runs code
- engine/tests/test_surrogate_validators.py 3.5 KB runs code
- engine/tests/test_surrogate.py 11 KB runs code
- engine/url_transforms.py 3.2 KB runs code
- engine/validators.py 9.1 KB runs code
- engine/waf_detector.py 6.9 KB runs code
- engine/waf_profiles.yaml 6.2 KB
- references/agent-reach/career.md 712 B
- references/agent-reach/dev.md 1.3 KB
- references/agent-reach/README.md 2.2 KB
- references/agent-reach/search.md 821 B
- references/agent-reach/social.md 5.6 KB
- references/agent-reach/video.md 2.7 KB
- references/agent-reach/web.md 1.9 KB
- references/chrome-stealth.md 2.2 KB
- references/insane-search/cache-archive.md 4.1 KB
- references/insane-search/fallback.md 6.0 KB
- references/insane-search/jina.md 3.8 KB
- references/insane-search/json-api.md 3.5 KB
- references/insane-search/media.md 3.5 KB
- references/insane-search/metadata.md 2.9 KB
- references/insane-search/naver.md 3.3 KB
- references/insane-search/playwright.md 6.7 KB
- references/insane-search/public-api.md 3.4 KB
- references/insane-search/README.md 20 KB
- references/insane-search/rss.md 2.9 KB
- references/insane-search/tls-impersonate.md 6.3 KB
- references/insane-search/twitter.md 3.5 KB
- scripts/cookie_crypto.py 2.9 KB runs code
- scripts/cookie_domains.py 1.1 KB runs code
- scripts/cookie_paths.py 3.8 KB runs code
- scripts/extract_cookies.py 9.3 KB runs code
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.
- 4d ago Changed · -2 lines · +6 tokens per session ff807c0ae8f3
- 22d ago Changed · +7 lines scan A → C c42b2faeb084
- 1mo ago Changed · -12 lines · +12 tokens per session 535ea8a233c7
- 1mo ago Changed · +17 lines · -207 tokens per session 49598aeae816
- 1mo ago First seen · 141 lines · 260 tokens per session scan A b3d974e28376
ultimate-browsing is a skill published in the GitHub repository code-yeongyu/lazycodex (3,782 stars, last pushed 3d ago), licensed MIT. It adds 71 tokens to every session and 2,716 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
computer-use
Drives the GUI of a visible local app window through orca computer: accessibility tree, clicks, typing, menus, dialogs, and screenshots in native apps and external browser windows (Chrome, Edge, Safari) or webviews. Prefer a programmatic path (shell, filesystem, git, HTTP, existing CLIs) whenever it can complete the…
browser-use
Control the user's Chrome through the existing persistent Node REPL and the Qwen Browser SDK.
opencli-browser
Use when an agent needs to drive a real Chrome window via opencli — inspect a page, fill forms, click through logged-in flows, or extract data ad-hoc. Covers the selector-first target contract, compound form fields, stale-ref handling, network capture, and the agent-native envelopes the CLI returns. Not for writing…
opencli-autofix
Automatically fix broken OpenCLI adapters when commands fail. Load this skill when an opencli command fails — it guides you through collecting a trace artifact, patching the adapter, retrying, and filing an upstream GitHub issue after a verified fix. Works with any AI agent.
playwright
Use when the task requires automating a real browser from the terminal (navigation, form filling, snapshots, screenshots, data extraction, UI-flow debugging) via playwright-cli or the bundled wrapper script.
webapp-testing
Start/reuse a local app, wait for readiness, inspect rendered state/console/network, act from observed selectors, and verify with evidence.