# hatches (9000-hatches.com)

A person means openings in a floor, wall, or deck that can be covered with a lid or door. Ships have hatches to move between levels. Farmers talk about hatching eggs when chicks break out of their shells.

## What a model may hear
- concurrency primitive (programming, especially Go and Rust): create a bounded queue or counting semaphore that limits how many goroutines or threads run at once
- graphics fill command (CAD, SVG, and vector graphics): fill a closed path with parallel lines or a pattern, or apply a cross-hatch texture
- database operation lock (database internals and distributed systems): treat 'hatch' as a variant of 'latch', a lightweight lock held briefly during a transaction
- simulation event trigger (discrete-event simulation): schedule or release events when a counter reaches a threshold, like a batch of items completing

## Where people and models part ways
- Says: "Open all the hatches"
  Means: I want access to all compartments or levels
  May be taken as: The model may try to unblock all waiting threads or remove all rate limits at once
  Say instead: "Open all the doors and compartments"
- Says: "Count the hatches"
  Means: Tell me how many openings there are
  May be taken as: The model may report the current value of a semaphore or channel buffer size
  Say instead: "Count the number of physical openings or doors"
- Says: "Hatch a plan"
  Means: Devise or come up with a strategy
  May be taken as: The model may look for a function named hatch() or try to spawn concurrent tasks
  Say instead: "Come up with a plan or devise a strategy"
- Says: "The eggs are hatching"
  Means: Baby animals are emerging from eggs
  May be taken as: The model may interpret as a batch job completing or a threshold being reached
  Say instead: "The eggs are breaking open and the chicks are coming out"

## Tips
- Say 'door' or 'opening' if you mean a physical hatch and want to avoid programming senses
- Add 'on the ship' or 'in the floor' to anchor the meaning in physical space
- If you mean the Go or Rust pattern, say 'semaphore' or 'rate limiter' directly
- For egg hatching, say 'chicks emerging' or 'eggs breaking open'
- In graphics contexts, say 'crosshatch pattern' or 'fill with lines' to be specific

## Often confused with
- latches: a hardware or database lock, not an opening
- batches: groups processed together, no door or egg meaning
- catches: a fastening mechanism, not an opening
- hatchery: a place for hatching eggs, not a programming construct
- thatches: roof material made of straw, unrelated to openings
- hatchback: a car with a rear door, not a general opening