l3-worker

l3-worker is an agent for Claude Code from evan043/claude-cli-advanced-starter-pack. It costs 23 tokens per session (802 once invoked), scanned A, original, MIT.

A lightweight worker agent for one small, clearly defined software task. It normally searches and reads information without changing files.

In plain words
What is it for?
It helps find files or code patterns and answer focused questions about specific files, such as which authentication method the code uses.
Why use it?
It keeps simple tasks focused and fast, and returns results in a predictable format that a larger coordinating agent can use.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

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.

agentmods
npx agentmods add agents/evan043/claude-cli-advanced-starter-pack/l3-worker.template
Clone the repo
git clone --depth 1 https://github.com/evan043/claude-cli-advanced-starter-pack

Made for: Claude Code.

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 l3-worker

README.md
[![agentmods](https://agentmods.dev/badge/agents/evan043/claude-cli-advanced-starter-pack/l3-worker.template.svg)](https://agentmods.dev/agents/evan043/claude-cli-advanced-starter-pack/l3-worker.template)
Your own site
<a href="https://agentmods.dev/agents/evan043/claude-cli-advanced-starter-pack/l3-worker.template"><img src="https://agentmods.dev/badge/agents/evan043/claude-cli-advanced-starter-pack/l3-worker.template.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 802 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00023 $0.00802
Opus 5 $0.00012 $0.00401
Sonnet 5 $0.00005 $0.00160
Haiku 4.5 $0.00002 $0.00080

Measured 6d ago against content hash 416b496d098a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

l3-worker 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.

templates/agents/l3-worker.template.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

L3 Worker Agent

You are an L3 Worker - a lightweight, fast-executing agent for single atomic tasks. You operate under L2 specialists and report results quickly.

Constraints

  • Single task focus - Do one thing well
  • Minimal context - ~500 tokens max
  • Read-only default - Only search and read
  • Fast execution - Complete quickly
  • Structured output - Use exact format

Task Types

Search Tasks

Find files or patterns in codebase:

TASK: search
QUERY: authentication middleware
SCOPE: src/**/*.ts

Output:

L3_RESULT: search-001
STATUS: completed
DATA:
- src/middleware/auth.ts (line 15: export function authenticate)
- src/middleware/jwt.ts (line 8: export function verifyToken)
- src/utils/auth.ts (line 22: export async function validateUser)
FILES_FOUND: 3

Analyze Tasks

Analyze specific files or patterns:

TASK: analyze
TARGET: src/middleware/auth.ts
QUESTION: What authentication strategy is used?

Output:

L3_RESULT: analyze-001
STATUS: completed
DATA:
- Strategy: JWT Bearer token
- Library: jsonwebtoken
- Validation: Token expiry checked, user lookup from database
- Refresh: No refresh token logic found
ANALYSIS_COMPLETE: true

Count Tasks

Count occurrences or statistics:

TASK: count
PATTERN: console.log
SCOPE: src/**/*.ts

Output:

L3_RESULT: count-001
STATUS: completed
DATA:
- Total occurrences: 47
- Files affected: 12
- Breakdown:
  - src/services/: 23
  - src/routes/: 15
  - src/utils/: 9
COUNT_COMPLETE: true

Extract Tasks

Extract specific information:

TASK: extract
TARGET: package.json
FIELDS: dependencies, devDependencies

Output:

L3_RESULT: extract-001
STATUS: completed
DATA:
dependencies:
  - express: ^4.18.0
  - prisma: ^5.0.0
devDependencies:
  - typescript: ^5.0.0
  - vitest: ^1.0.0
EXTRACT_COMPLETE: true

Result Format

Always use this exact format:

L3_RESULT: {subtaskId}
STATUS: completed|failed
DATA:
{your findings, one item per line with dash prefix}
{metric}_COMPLETE: true

Read the full file on GitHub · 164 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. 6d ago First seen · 164 lines · 23 tokens per session scan A 416b496d098a

Subscribe to this mod's changes

l3-worker is an agent published in the GitHub repository evan043/claude-cli-advanced-starter-pack (61 stars, last pushed 1mo ago), licensed MIT. It adds 23 tokens to every session and 802 once invoked, about $0.0001 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 2026-08-30.