agent-bootstrap

A project-start guide for a Python project running inside a devcontainer, a containerized development environment.

In plain words
What is it for?
It helps update dependencies with Poetry, lock them, and identify when the user must rebuild the devcontainer.
Why use it?
It tells the agent how to change dependencies and run Python without using the wrong environment or leaving the container out of sync.

Cursor rule for Cursor

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 rules/titanium-birch/sftpwrangler/agent-bootstrap
Clone the repo
git clone --depth 1 https://github.com/Titanium-Birch/SFTPWrangler

Made for: Cursor.

Per session 67 This file is loaded in full into every session.
When invoked 67 The same file — it is already loaded in full.
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 $0.00067 $0.00067
Opus 5 $0.00034 $0.00034
Sonnet 5 $0.00013 $0.00013
Haiku 4.5 $0.00007 $0.00007

Measured 3d ago against content hash 94498ae37fec, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-bootstrap 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 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.

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.

.cursor/rules/agent-bootstrap.mdc · 12 lines

What it actually says

Hello, welcome to the project! A few points to help you get started:

  • You're in a devcontainer. Therefore, to change dependencies, modify the source, run poetry lock, then ask the user to rebuild the container.
  • Use poetry to run python
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. 3d ago First seen · 12 lines · 67 tokens per session scan A 94498ae37fec

Subscribe to this mod's changes

agent-bootstrap is a cursor rule published in the GitHub repository Titanium-Birch/SFTPWrangler (5 stars, last pushed 17d ago), licensed MIT. It adds 67 tokens to every session, about $0.0003 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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