Editor setup
Editor setup guides for working with SpecDD .sdd files in VS Code-compatible editors and JetBrains IDEs.
- How to install the VS Code extension for .sdd files
Install SpecDD support in Visual Studio Code or a compatible editor, then verify syntax highlighting, diagnostics, completions, hovers, links, and file icons.
Read guide - How to install the JetBrains plugin for .sdd files
Install SpecDD support in JetBrains IDEs, then verify .sdd highlighting, validation, section docs, structure view, completions, path links, warnings, and quick fixes.
Read guide - How to enable .sdd validation and path warnings in your editor
Use installed SpecDD editor support to validate .sdd files, check path warnings, fix unresolved references, and verify specs with specdd lint.
Read guide - How to get .sdd autocompletion and section hints
Use SpecDD editor completions and hints to write valid section labels, complete paths, inspect section documentation, and navigate .sdd files.
Read guide
More How-To categories
- Getting started
Start with spec-driven development, write your first local SpecDD spec, and run a small end-to-end change with human-and-agent-friendly guardrails.
11 guides - Install and setup
Install the SpecDD CLI, prepare Node.js when needed, initialize or update projects, and verify the framework files are wired correctly.
9 guides - Set up your agent
Set up Claude Code, Codex, GitHub Copilot, Cursor, Windsurf, Gemini CLI, OpenCode, Junie, Cline, Antigravity, and universal Agent Skills for SpecDD.
15 guides - Agent workflows
Use SpecDD with agents by keeping prompts short, plans spec-bound, file changes authorized, context durable, and reviews tied to local .sdd contracts.
15 guides - Write specs by level
Write SpecDD specs at the right level: root specs for project context, module specs for area boundaries, and focused specs for local behavior and contracts.
14 guides - Use spec sections
Use SpecDD sections correctly: write only sections that add local value, keep authority clear, and express behavior, boundaries, tasks, scenarios, paths, and examples.
25 guides - Spec-writing technique
Improve SpecDD craft with techniques for small specs, right-level placement, naming, splitting, explicit rules, draft review, edge cases, and compatibility.
16 guides - Spec-driven workflows
Use SpecDD workflows to draft, review, implement, synchronize, and evolve local specs without losing source-of-truth context.
11 guides - Work with SpecDD skills
Use SpecDD skills deliberately: choose the right skill for the phase, keep authority clear, chain skills safely, and verify each result against local specs.
17 guides - Software design practices
Use SpecDD to make software design decisions operational: responsibility, boundaries, layers, cohesion, debt prevention, public APIs, and dependency direction.
20 guides - Adopt SpecDD on existing projects
Adopt SpecDD gradually in live codebases by starting with active areas, reviewing generated specs, expanding folder by folder, and measuring practical review and delivery signals.
10 guides - Testing and quality
Turn SpecDD specs into practical quality work: TDD and BDD loops, acceptance criteria, coverage tracing, CI checks, regression tests, and testability review.
11 guides - Code review and governance
Use SpecDD in code review and governance by checking local authority, behavior, boundaries, spec updates, agent output, and high-risk contract changes.
9 guides - Refactoring and maintenance
Use SpecDD to keep maintenance safe: preserve specified behavior, maintain authority while moving code, keep specs current, and delete obsolete contracts carefully.
9 guides - Security and risk
Use SpecDD to make security and risk constraints local, explicit, reviewable, and hard for humans or agents to weaken accidentally.
13 guides - Teams and process
Use SpecDD as a team process by keeping durable behavior in specs, project planning in tickets, conventions in bootstrap.project.md, and reviews lightweight but consistent.
13 guides - Troubleshooting
Fix common SpecDD problems: agent setup, .sdd highlighting, CLI and Node errors, ambiguous specs, unresolved paths, vague specs, stale criteria, and skill installs.
12 guides