preflight

A terminal command that runs npm run preflight to refresh a project's version and model information. It then reports current SDK versions, selected models, model counts, and deprecated models.

In plain words
What is it for?
Use it before development work that depends on SDKs or AI models. It refreshes the snapshot and summarizes available and deprecated models.
Why use it?
It avoids relying on outdated version or model details when working on a project. It also highlights models that should no longer be used.

Command 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 commands/aculich/codegen-preflight/preflight
Clone the repo
git clone --depth 1 https://github.com/aculich/codegen-preflight

Made for: Cursor.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 96 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 $0.00000 $0.00096
Opus 5 $0.00000 $0.00048
Sonnet 5 $0.00000 $0.00019
Haiku 4.5 $0.00000 $0.00010

Measured yesterday against content hash 87ca447dcafb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

preflight 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 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.

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/commands/preflight.md · 13 lines

What it actually says

Preflight: refresh versions + model catalog

Execute npm run preflight in the terminal to force refresh the snapshot.

After completion, read .cursor/rules/01-version-snapshot.mdc and report:

  • Latest SDK versions (npm and PyPI)
  • Selected default models with release dates for: reasoning, fast, vision, image generation
  • Total models discovered and breakdown by type
  • Any deprecated models to avoid

Then proceed with the user's request.

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. yesterday First seen · 13 lines · 0 tokens per session scan A 87ca447dcafb

Subscribe to this mod's changes

preflight is a command published in the GitHub repository aculich/codegen-preflight (2 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 96 tokens. 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.