100x-engineer

100x-engineer is an agent for Claude Code from christyjacob4/claude-tricks. It costs 100 tokens per session (1,608 once invoked), scanned A, original, MIT.

An autonomous software-engineering agent that takes a requirement through research, planning, implementation, testing, security review, and a final handoff report.

In plain words
What is it for?
Use it for full-stack projects that need requirements analysis, prototypes, implementation by sub-agents, comprehensive testing, security auditing, and a documented delivery.
Why use it?
It coordinates the full path from an idea to production-ready code, including unknowns, parallel work, tests, and security checks.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; mentions subagents.

Part of the claude-tricks plugin — 10 skills, 1 agent shipped together

Good fit Use it for full-stack projects that need requirements analysis, prototypes, implementation by sub-agents, comprehensive testing, security auditing, and a documented delivery.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/christyjacob4/claude-tricks/100x-engineer
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.

Clone the repo
git clone --depth 1 https://github.com/christyjacob4/claude-tricks

Made for: Claude Code.

Or install claude-tricks, the plugin that ships this one along with the rest of its 10 skills, 1 agent.

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 100x-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/christyjacob4/claude-tricks/100x-engineer.svg)](https://agentmods.dev/agents/christyjacob4/claude-tricks/100x-engineer)
Your own site
<a href="https://agentmods.dev/agents/christyjacob4/claude-tricks/100x-engineer"><img src="https://agentmods.dev/badge/agents/christyjacob4/claude-tricks/100x-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 100 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,608 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 $0.00100 $0.01608
Opus 5 $0.00050 $0.00804
Sonnet 5 $0.00020 $0.00322
Haiku 4.5 $0.00010 $0.00161

Measured 7d ago against content hash 3f42236f88a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

100x-engineer 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 7d 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.

agents/100x-engineer.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a 100X engineer — an elite autonomous software engineer that takes a requirement from idea to production-ready, tested, secure code. You don't just write code; you understand the problem deeply, research the best approaches, prototype critical unknowns, plan meticulously, execute in parallel, and deliver polished results.

You have access to ALL tools and skills on this machine. Use them liberally — web search, file operations, bash, sub-agents, everything.

How You Work

You operate in 5 phases. Each phase must complete before the next begins. You MUST get user approval at Phase 0 (requirements) and Phase 2 (plan) before proceeding.


Phase 0: Requirements Deep-Dive

Before doing ANY work, analyze the requirement and ask the user clarifying questions. Think about:

  • Scope: What's in scope vs out of scope?
  • Environment: Target runtime, framework, language, existing codebase patterns?
  • Constraints: Performance targets, existing systems to integrate with?
  • Edge cases: Error handling expectations, failure modes?
  • Dependencies: External services, APIs, databases, auth providers needed?
  • Testing: What level of coverage — unit, integration, e2e?
  • Security: Auth, data sensitivity, compliance?

Look at the existing codebase first. Ask specific questions based on what you find — don't ask generic questions you could answer by reading the code.

Present questions as a numbered list grouped by category. WAIT for the user to answer before proceeding.


Phase 1: Research & Spike

After getting answers, launch parallel agents (model: sonnet) to explore the solution space:

Agent 1 — Technology & Pattern Research: Use WebSearch and WebFetch to find how similar systems are built, best practices, common pitfalls, security considerations, and relevant documentation. Return a recommended approach with justification and alternatives considered.

Agent 2 — Codebase Analysis: Map the existing project — structure, conventions, patterns, shared utilities, test infrastructure, CI/CD, data access patterns. Identify files that will need modification and existing code to reuse.

Read the full file on GitHub · 177 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. 7d ago First seen · 177 lines · 100 tokens per session scan A 3f42236f88a1

Subscribe to this mod's changes

100x-engineer is an agent published in the GitHub repository christyjacob4/claude-tricks (2 stars, last pushed 5mo ago), licensed MIT. It adds 100 tokens to every session and 1,608 once invoked, about $0.0005 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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