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 agentmods add skills/memtensor/memos/browserwing-executornpx skills add MemTensor/MemOS --skill browserwing-executorgit clone --depth 1 https://github.com/MemTensor/MemOSWhat 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 | $0.00042 | $0.04064 |
| Opus 5 | $0.00021 | $0.02032 |
| Sonnet 5 | $0.00008 | $0.00813 |
| Haiku 4.5 | $0.00004 | $0.00406 |
Grade A, and why
browserwing-executor 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 yesterday.
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.
curl -X GET 'http://localhost:8080/api/v1/executor/help' Copies of this mod
1 near-identical copy found in the catalogue:
- browserwing — 86% identical, 1,059 lines differ
How it starts
The opening of the file, as written. The whole thing — 511 lines — stays where its author put it; the contents beside it link to each section on GitHub.
BrowserWing Executor API
Overview
BrowserWing Executor provides comprehensive browser automation capabilities through HTTP APIs. You can control browser navigation, interact with page elements, extract data, and analyze page structure.
API Base URL: http://localhost:8080/api/v1/executor
Authentication: Use X-BrowserWing-Key: <api-key> header or Authorization: Bearer <token>
Core Capabilities
- Page Navigation: Navigate to URLs, go back/forward, reload
- Element Interaction: Click, type, select, hover on page elements
- Data Extraction: Extract text, attributes, values from elements
- Accessibility Analysis: Get accessibility snapshot to understand page structure
- Advanced Operations: Screenshot, JavaScript execution, keyboard input
- Batch Processing: Execute multiple operations in sequence
API Endpoints
1. Discover Available Commands
IMPORTANT: Always call this endpoint first to see all available commands and their parameters.
curl -X GET 'http://localhost:8080/api/v1/executor/help'
Response: Returns complete list of all commands with parameters, examples, and usage guidelines.
Query specific command:
curl -X GET 'http://localhost:8080/api/v1/executor/help?command=extract'
2. Get Accessibility Snapshot
CRITICAL: Always call this after navigation to understand page structure and get element RefIDs.
curl -X GET 'http://localhost:8080/api/v1/executor/snapshot'
Response Example:
{
"success": true,
"snapshot_text": "Clickable Elements:\n @e1 Login (role: button)\n @e2 Sign Up (role: link)\n\nInput Elements:\n @e3 Email (role: textbox) [placeholder: [email protected]]\n @e4 Password (role: textbox)"
}
Use Cases:
- Understand what interactive elements are on the page
- Get element RefIDs (@e1, @e2, etc.) for precise identification
- See element labels, roles, and attributes
- The accessibility tree is cleaner than raw DOM and better for LLMs
- RefIDs are stable references that work reliably across page 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.
- yesterday First seen · 511 lines · 42 tokens per session scan A f799c4435840
browserwing-executor is a skill published in the GitHub repository MemTensor/MemOS (11,091 stars, last pushed 4d ago), licensed Apache-2.0. It adds 42 tokens to every session and 4,064 once invoked, about $0.0002 per session on Opus 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.
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