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Sparc

Category: Engineering  ·  Sub-category: architecture  ·  Last updated:
SPARC methodology — Specification, Pseudocode, Architecture, Refinement, Completion. Five-phase structured workflow for algo-heavy or non-trivial features where the right shape is not obvious upfront. Distinct from APEX (linear analyze-plan-execute-validate) by adding an explicit pseudocode step before architecture and an explicit refinement pass after the first implementation. Use when designing parsers, solvers, scoring algorithms, custom rendering pipelines, complex data transformations, or anything where you'd benefit from sketching the algorithm before committing to file layout.

From the source SKILL.md

<objective> Drive a SPARC pass: Specification → Pseudocode → Architecture → Refinement → Completion. Each phase is gated by an artifact you produce before moving on. Track every phase as a TodoWrite item so the user sees progress and can interrupt at any boundary. </objective>

1. Specification — pending
2. Pseudocode — pending
3. Architecture — pending
4. Refinement — pending
5. Completion — pending

What this skill does

Sparc is a community-contributed Claude Code skill in the architecture sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/sparc/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when designing parsers, solvers, scoring algorithms, custom rendering pipelines, complex data transformations, or anything where you'd benefit from sketching the algorithm before committing to file layout.

Who uses this skill

The Sparc Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 70,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/sparc
curl -L https://claudskills.com/skills/sparc/SKILL.md \
  -o ~/.claude/skills/sparc/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/sparc/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/sparc/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\sparc\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

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Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
ClaudSkills. (2026). Sparc [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/sparc/
BibTeX
@misc{sparc-2026,
  author    = {ClaudSkills},
  title     = {Sparc [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/sparc/}
}

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