Native nostalgia stack

Apply only the contract material to the requested work. Project AGENTS and docs own implementation rules and exact commands; project-structure/SKILL.md owns language-neutral layout and documentation.

Compiler and layout

• Use the project-pinned latest stable FPC and Delphi mode unless project docs explicitly choose another mode.
• Keep project-wide compiler directives in one shared include used by every unit.
• Put Pascal source under one root (source/ preferred), using namespaced filenames and a flat layout until a namespace becomes unwieldy.
• Co-locate unit tests; keep delivered end-to-end corpora under root tests/.
• Put all ignored build output under root build/.
• Prefer executable InstantFPC for one-off Pascal scripts; use an existing task runner or dynamic language only when that is materially simpler.

Read references/code-style.md when writing or reviewing Pascal source.

Build contract

The project chooses the implementation but provides one root entry point:

• bare invocation performs a clean development build of all binaries;
• positional names select one or more binary targets;
• development is the default and a production flag selects release settings;
• clean is a target and can be combined with a target;
• every binary lands under build/.

Document the entry point, targets, and flags in docs/build-system.md; read it before changing them.

Formatter and health contracts

One formatter/linter command rewrites Pascal by default and has a non-mutating --check mode that exits non-zero on deviation. Project-specific style lives in the tool and docs/code-style.md, not scattered config.

The codebase-health gate reports located duplication, per-function cyclomatic and cognitive complexity, sortable file health, and complexity-times-churn hotspots. Thresholds and ignores live in one root config; breaches exit non-zero. Document the tool and thresholds in docs/tooling.md.

Hook and completion

Lefthook runs the project's formatter check on staged Pascal and its build-and-test command. Use the exact project entry points, install the hook via the documented quick start, and never bypass it without explicit user direction.

Before relying on tool behavior, inspect root and area AGENTS, confirm fpc -iV against project/CI pins, and verify any touched tool version live. Before handoff, observe the project formatter and build-and-test gates passing and update only the authoritative docs affected by the change.