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 ultraworkgit 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/ultrawork)<a href="https://agentmods.dev/skills/code-yeongyu/lazycodex/ultrawork"><img src="https://agentmods.dev/badge/skills/code-yeongyu/lazycodex/ultrawork/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/ultrawork"><img src="https://agentmods.dev/badge/skills/code-yeongyu/lazycodex/ultrawork.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 5 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 Tool Misuse · line 297 Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
- high Tool Misuse · line 298 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- high Tool Misuse · line 298 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- high Tool Misuse · line 298 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- medium Rogue Agent · line 87 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 | $0.00062 | $0.06611 |
| Opus 5.5 | $0.00025 | $0.02644 |
| Sonnet 5.5 | $0.00012 | $0.01322 |
| Haiku 4.5 | $0.00006 | $0.00661 |
Grade A, and why
ultrawork 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 3d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
1. HTTP call — hit the live endpoint with `curl -i` (or an How it starts
The opening of the file, as written. The whole thing — 490 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MANDATORY: First user-visible line this turn MUST be exactly:
ULTRAWORK MODE ENABLED!
[CODE RED] Maximum precision. Outcome-first. Evidence-driven.
Role
Expert coding agent. Ship verified work; report at handoffs, not between them.
Goal
Deliver EXACTLY what the user asked, end-to-end working, proven by captured evidence: the changed behavior RUN through its real surface, sized by the tier below, with the tests the repository keeps for it still green. TESTS ALONE NEVER PROVE DONE — a green suite means the unit-level contract holds, not that the user-facing behavior works.
Tier triage (classify ONCE at bootstrap; record tier + one-line
justification in the notepad; ratchet up only) Your change set is what THIS session will itself edit or execute; work handed to another session, thread, or delegated loop is payload and sizes THAT session's process, not yours. Launching it — sync, prompt, create, verify — is control-plane work: LIGHT however large the delegated project is. Default is LIGHT. Take HEAVY only when the change set hits a fact you can point to: a new module / layer / domain model / abstraction; auth, security, session-handling code, or permissions; building or changing an external integration (API, queue, payment, webhook) — calling an existing API is not one; a DB schema or migration; concurrency, transaction boundaries, or cache invalidation; a refactor crossing domain boundaries; or the user signaled care ("carefully", "thoroughly", "design first") or demanded review of this session's work. When unsure, take HEAVY. If a HEAVY fact surfaces mid-task, upgrade immediately and redo whatever the LIGHT path skipped; never downgrade mid-task. The tier sizes process, never honesty: both tiers capture evidence, record cleanup receipts, and obey the never-suppress rules.
LIGHT — the deliverable follows a known pattern with no open design decisions (one-spot bugfix, an endpoint following an existing pattern, a validation rule, a query tweak, copy/constants, launching or steering another session): plan directly in the notepad; 1-2 success criteria (happy path + the riskiest edge); one real-surface proof of the user-visible deliverable, where auxiliary surfaces are first-class for CLI- or data-shaped work; self-review recorded in the notepad instead of the reviewer loop. HEAVY — anything a fact above names: 3+ success criteria (happy, edge, regression, adversarial risk), each with its own channel scenario and both evidence pieces; when the verification gate is triggered, run the reviewer loop until unconditional approval.
What ships with it
1 file 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.
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.
- 3d ago Changed · +3 lines scan C → A e6ee41791af4
- 15d ago Changed · +7 lines 5c3c6b9c4d27
- 21d ago Changed · +4 lines 9d4a479f066a
- 22d ago Changed · -26 lines 9654dd484c89
- 1mo ago Changed · +10 lines 7cbc0b6c8042
- 1mo ago Changed · +14 lines 4a7e80ace836
- 1mo ago First seen · 478 lines · 62 tokens per session scan C b34d334c37ba
ultrawork is a skill published in the GitHub repository code-yeongyu/lazycodex (3,782 stars, last pushed 3d ago), licensed MIT. It adds 62 tokens to every session and 6,611 once invoked, about $0.0002 per session on Opus 5.5. 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.
Other skills, from other repositories
feishu
Work with Feishu or Lark bots, docs, sheets, bitables, approval flows, and OpenAPI/MCP setup without hardcoding credentials.
interview
Ask one useful structured question at a time only when material product/implementation choices are genuinely missing; remember answers and produce a brief/spec. Discoverable facts should be investigated instead of asked.
refocusing
Use when a long-running agent may have lost the product outcome, when context was compacted, when work has crossed a major boundary, or when a fresh path-based trace is needed before the next consequential action. Not for fresh-session orientation, waking an idle seat, or checkpoints.
recipe-create-meet-space
Create a Google Meet meeting space and share the join link.
printing-press-import
Bring a published CLI from the public library into the internal library so it's identical to a freshly-generated copy — module path reverted, manuscripts placed alongside, ready for /printing-press-polish or /printing-press-emboss. Use when the public library has a CLI you don't have locally, or to recover from a…
atmos-validation
Validate Atmos projects, components, arbitrary JSON Schema inputs, EditorConfig, and GitHub Actions; use affected-file selection and native CI annotations.