delphi-dev — Claude Code Plugin
A Claude Code plugin that turns the assistant into a senior Delphi expert.
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What is it
delphi-dev activates automatically whenever Claude Code detects Delphi-related content — .pas, .dpr, .dfm, .dpk, .dproj files, or any mention of Object Pascal, FireMonkey, VCL, FireDAC, or RAD Studio. Once active, Claude applies the full Delphi Style Guide, Clean Code principles, and SOLID patterns without being asked.
Features
| Command | Description |
|---|
| Auto Delphi Mode | Opening any .pas, .dpr or .dfm file activates the full coding standards context automatically |
/audit | Generates a complete professional technical audit with per-dimension scoring and a prioritized modernization roadmap |
/review | Quick code review — detects violations and provides corrected examples |
/write | Writes new code with all standards applied from the start |
/new-project | Scaffolds a new project with standardized layered folder structure |
/spec | Analyzes the current project source code and auto-generates a complete SPEC.md |
/tdd | Generates a complete DUnitX unit test suite for the project |
/about | Displays plugin info, version, and available commands |
Installation
In Claude Code (VS Code, Cursor, Windsurf, etc.):
/plugin marketplace add adrianosantostreina/delphi-dev
/plugin install delphi-dev@delphi-dev
Via terminal (CLI):
claude plugin marketplace add adrianosantostreina/delphi-dev
claude plugin install delphi-dev@delphi-dev
After installation
After running the install command, a menu will appear asking for the installation scope:
| Option | When to use |
|---|
| Install for you (user scope) | Recommended for individual developers — available in all projects on your machine |
| Install for all collaborators (project scope) | Adds the plugin to .claude/settings.json so everyone who clones the repo gets it |
| Install for you, in this repo only (local scope) | Available only in the current project, gitignored |
Note: After confirming the installation in the menu, the plugin will be installed silently — no confirmation message is shown.
Verify the installed version:
/about
The current version should be 1.3.0.
Tip (Windows): If you get a "Host key verification failed" error, run this once in your terminal before installing:
git config --global url."https://github.com/".insteadOf [email protected]:
Updating
To update to the latest version, uninstall and reinstall:
/plugin uninstall delphi-dev
/plugin install delphi-dev@delphi-dev
Uninstalling
/plugin uninstall delphi-dev
/plugin marketplace remove delphi-dev
Or via CLI:
claude plugin uninstall delphi-dev
claude plugin marketplace remove delphi-dev
Standards Applied Automatically
Prefixes
F — fields (private attributes)A — method parametersL — local variablesC_ — constants (+ UPPER_CASE body)T — classes and typesI — interfacesE — exceptions
Formatting
- ✅ 2-space indentation (no tabs)
- ✅ 120-character line limit
- ✅
begin and else on their own lines
- ✅ One variable per line
- ✅ One unit per line in
uses clause (RTL → VCL/FMX → FireDAC → Third-party → Project)
Prohibited Commands
- ❌
with — causes ambiguity and debugging issues
- ❌
Break / Continue — use loop conditions instead
- ❌
Real — use Double or Currency
- ⚠️
Exit — allowed only as guard clauses at the top of a method
Safety Rules
- ✅ One resource per
try..finally block
- ✅ No empty
except blocks
- ✅ SQL always parameterized (no string concatenation)
- ✅
const never applied to interface parameters (ARC compatibility)
- ✅ No global variables — use
class var instead
Component Prefixes (VCL / FMX)
btn, edt, lbl, mmo, cbx, grd, qry, cnn, dts, pnl, tmr, and more — see skills/delphi-standards/references/component-prefixes.md
Included Skills
| Skill | Activation |
|---|
delphi-standards | Auto-activated on Delphi file/code detection |
delphi-write | Activated when writing new Delphi code |
delphi-laudo | Activated by the /audit command |
delphi-spec | Activated by the /spec command |
delphi-testes | Activated by the /tdd command or automatically after delphi-write |
delphi-claudeignore | Auto-activated on Delphi project detection to optimize token usage |
Included Agents
adrianosantostreina