API Design
s-morgan-jeffries/apple-mail-fast-mcp
Use BEFORE adding any new tool, parameter, or endpoint to the Apple Mail MCP server.
Run the SPARC Pseudocode and Architecture phases (2 and 3) — write algorithm pseudocode, design module boundaries and API contracts, then implement
$ npx skills add ruvnet/ruflo --skill sparc-implement -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ruvnet/ruflo sparc-implement --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ruflo-sparc/skills/sparc-implement .claude/skills/sparc-implement && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "sparc-implement" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-sparc/skills/sparc-implement into .claude/skills/sparc-implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sparc-implement", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-sparc/skills/sparc-implementType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add ruvnet/ruflo --skill sparc-implement -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ruvnet/ruflo sparc-implement --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/ruflo-sparc/skills/sparc-implement .agents/skills/sparc-implement && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "sparc-implement" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-sparc/skills/sparc-implement into .agents/skills/sparc-implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sparc-implement", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ruvnet/ruflo --skill sparc-implement -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ruvnet/ruflo sparc-implement --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/ruflo-sparc/skills/sparc-implement .cursor/skills/sparc-implement && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "sparc-implement" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-sparc/skills/sparc-implement into .cursor/skills/sparc-implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sparc-implement", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/ruvnet/ruflo.git --path plugins/ruflo-sparc/skills/sparc-implement--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add ruvnet/ruflo --skill sparc-implement -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ruvnet/ruflo sparc-implement --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/ruflo-sparc/skills/sparc-implement .gemini/skills/sparc-implement && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "sparc-implement" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-sparc/skills/sparc-implement into .gemini/skills/sparc-implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sparc-implement", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install ruvnet/ruflo sparc-implementInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add ruvnet/ruflo --skill sparc-implement -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/ruflo-sparc/skills/sparc-implement .github/skills/sparc-implement && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "sparc-implement" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-sparc/skills/sparc-implement into .github/skills/sparc-implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sparc-implement", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ruvnet/ruflo --skill sparc-implement -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ruvnet/ruflo sparc-implement --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/ruflo-sparc/skills/sparc-implement .opencode/skills/sparc-implement && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "sparc-implement" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-sparc/skills/sparc-implement into .opencode/skills/sparc-implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sparc-implement", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
sparc-implementRun the SPARC Pseudocode and Architecture phases (2 and 3) — write algorithm pseudocode, design module boundaries and API contracts, then implement
Sparc Implement is an agent skill from ruvnet/ruflo. Run the SPARC Pseudocode and Architecture phases (2 and 3) — write algorithm pseudocode, design module boundaries and API contracts, then implement
Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs, covering API design. It works with Model Context Protocol. The repository describes itself as: 🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory…. The licence is MIT.
9 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit de590e1. It shows what the files ask for, not the result of running them.
Pre-approves these tools, so the agent can use them without asking each time:
mcp__plugin_ruflo-core_ruflo__memory_storemcp__plugin_ruflo-core_ruflo__memory_searchmcp__plugin_ruflo-core_ruflo__memory_retrievemcp__plugin_ruflo-core_ruflo__task_createmcp__plugin_ruflo-core_ruflo__task_updatemcp__plugin_ruflo-core_ruflo__task_completemcp__plugin_ruflo-core_ruflo__hooks_intelligence_trajectory-stepmcp__plugin_ruflo-core_ruflo__neural_predictmcp__plugin_ruflo-core_ruflo__workflow_createBash…and 3 more on the same allowed-tools line.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Sparc Implement loads about 1.3k tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 455 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check noted patterns worth knowing about, such as sudo or a known installer.
allowed-tools: mcp__plugin_ruflo-core_ruflo__memory_store, mcp__plugin_ruflo-core_ruflo__memory_search, mcp__pluginAutomated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from ruvnet/ruflo at commit de590e1, republished under its MIT licence (© ruvnet). 455 words, ~1,331 tokens.
.claude/skills/sparc-implement/SKILL.md (or your agent's skills folder).Run Phases 2 and 3 of the SPARC methodology: design algorithms with pseudocode, then establish architecture with module boundaries and API contracts.
After the Specification phase is complete and its gate has been passed. This skill covers both the Pseudocode and Architecture phases as they are tightly coupled — algorithm design informs module boundaries and vice versa.
Retrieve specification — call mcp__plugin_ruflo-core_ruflo__memory_search with namespace sparc-phases and query for the feature's spec. Extract requirements, acceptance criteria, constraints, and edge cases.
Retrieve phase state — call mcp__plugin_ruflo-core_ruflo__memory_search with namespace sparc-state and query for the feature to confirm we are in Phase 2 or 3.
Search for architectural patterns — call mcp__plugin_ruflo-core_ruflo__neural_predict with the feature description to find relevant architectural decisions from past projects
Phase 2 — Pseudocode Design: a. For each acceptance criterion, write language-agnostic pseudocode that satisfies it b. Define core data structures with type annotations c. Map control flow including:
mcp__plugin_ruflo-core_ruflo__memory_store with namespace sparc-phases, key pseudo-{feature-slug}{ status: "complete", algorithms: [...], dataStructures: [...], controlFlow: [...], complexity: {...} }Phase 3 — Architecture Design: a. Define bounded contexts and aggregate roots following DDD patterns:
mcp__plugin_ruflo-core_ruflo__memory_store with namespace sparc-phases, key arch-{feature-slug}{ status: "complete", boundedContexts: [...], apiContracts: [...], moduleBoundaries: {...}, infrastructure: {...} }Update phase state — call mcp__plugin_ruflo-core_ruflo__memory_store with namespace sparc-state, updating current phase to 3 (Architecture) with both artifacts recorded
Record trajectory step — call mcp__plugin_ruflo-core_ruflo__hooks_intelligence_trajectory-step with architecture summary
Begin implementation — if the user confirms, proceed to write production code: a. Create files following the defined module boundaries b. Implement interfaces and types first c. Implement core logic following the pseudocode d. Write unit tests alongside implementation (TDD when possible) e. Run tests to verify acceptance criteria
Present architecture — display the architecture decision record and suggest running /sparc advance to pass the Phase 3 gate
# Pseudocode: {Feature Name}
## Core Algorithms
### Algorithm 1: {name}
```pseudocode
FUNCTION processRequest(input):
VALIDATE input against schema
IF invalid THEN THROW ValidationError
result <- TRANSFORM input
STORE result
RETURN resultComplexity: O(n) time, O(1) space
src/{feature}/
{feature}.types.ts # Interfaces and types
{feature}.service.ts # Business logic
{feature}.controller.ts # HTTP handling
{feature}.repository.ts # Data access
{feature}.test.ts # TestsPhases 2-3 complete. Run /sparc advance to pass the gate check.
© ruvnet, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in plugins/ruflo-sparc/skills/sparc-implement of ruvnet/ruflo.
Open the folder on GitHubat commit de590e1
Sparc Implement next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Sparc Implement this skillruvnet/ruflo | 74k | — | ~1.3k | Automated safety check: Notes | MIT | |
| API Designs-morgan-jeffries/apple-mail-fast-mcp | 104 | — | ~876 | Automated safety check: Pass | MIT | |
| API DesignIngvarConsulting/unica | 215 | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Mas API ContractAUTO-MAS-Project/AUTO-MAS | 707 | — | ~1.9k | Automated safety check: Pass | AGPL-3.0 | |
| Azsdk Common Pipeline FixerAzure/azure-sdk-tools | 134 | — | ~831 | Automated safety check: Pass | MIT | |
| LangBot Core Developmentlangbot-app/LangBot | 18k | — | ~1.4k | Automated safety check: Notes | Apache-2.0 |
s-morgan-jeffries/apple-mail-fast-mcp
Use BEFORE adding any new tool, parameter, or endpoint to the Apple Mail MCP server.
IngvarConsulting/unica
Проектирование и ревью API 1С: публичный программный интерфейс, служебный интерфейс, переопределяемые модули, совместимость, версионирование и миграция потребителей.
AUTO-MAS-Project/AUTO-MAS
Define backend API contract standards for FastAPI services. An agent skill from AUTO-MAS-Project/AUTO-MAS.
Azure/azure-sdk-tools
Automatically fix Azure SDK CI/CD pipeline failures by applying code changes and verifying locally.
langbot-app/LangBot
Covers developing the LangBot core backend and web UI: dev setup, repo layout, API auth types, adding endpoints, migrations and keeping the MCP server in step.
anthropics/claude-plugins-official
Entry point for building an MCP server: asks about the use case, picks a deployment model and tool-design pattern, then hands off to more specialized skills.
ruvnet/ruflo
Stores, searches, and retrieves successful patterns with HNSW-indexed semantic search so agents can reuse past solutions instead of relearning them.
ruvnet/ruflo
Runs claude-flow CLI security scans for input validation, path traversal, SQL injection, XSS, hardcoded secrets and known CVEs, and writes an audit report.
ruvnet/ruflo
Applies the SPARC method (specification, pseudocode, architecture, refinement, completion) with 17 specialized modes and multi-agent orchestration, from research to deployment.
ruvnet/ruflo
Coordinates a hierarchical swarm of specialized agents through the claude-flow CLI for work that spans several files or modules at once.
ruvnet/ruflo
Sets up and drives Ruflo, an npm-installed orchestration layer for multi-agent swarms, persistent memory, routing, hooks and its MCP tool catalog.
ruvnet/ruflo
Reference for spawning, listing, monitoring and stopping agents with claude-flow commands, with agent type families, routing codes and coordination tips.
Works with
Categories
Run the SPARC Pseudocode and Architecture phases (2 and 3) — write algorithm pseudocode, design module boundaries and API contracts, then implement. Sparc Implement is an agent skill from ruvnet/ruflo.
Sparc Implement fits situations like: tasks that involve API design.
Run `npx skills add ruvnet/ruflo --skill sparc-implement -a claude-code`. Or copy the skill folder (plugins/ruflo-sparc/skills/sparc-implement in ruvnet/ruflo) into .claude/skills/sparc-implement in your project. Claude Code loads it when a task matches its description.
Run `npx skills add ruvnet/ruflo --skill sparc-implement -a codex`. Or copy the skill folder (plugins/ruflo-sparc/skills/sparc-implement in ruvnet/ruflo) into .agents/skills/sparc-implement in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ruvnet/ruflo --skill sparc-implement -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sparc-implement, .gemini/skills/sparc-implement, .github/skills/sparc-implement and .opencode/skills/sparc-implement in your project.
SKILL.md names no scripts, command-line tools or credentials: Sparc Implement is instructions for the agent only. Its frontmatter pre-approves these tools: mcp__plugin_ruflo-core_ruflo__memory_store, mcp__plugin_ruflo-core_ruflo__memory_search, mcp__plugin_ruflo-core_ruflo__memory_retrieve, mcp__plugin_ruflo-core_ruflo__task_create, mcp__plugin_ruflo-core_ruflo__task_update, mcp__plugin_ruflo-core_ruflo__task_complete, mcp__plugin_ruflo-core_ruflo__hooks_intelligence_trajectory-step, mcp__plugin_ruflo-core_ruflo__neural_predict, mcp__plugin_ruflo-core_ruflo__workflow_create, Bash, Read, Write, Edit.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
Sparc Implement is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.3k tokens (SKILL.md is roughly 5.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Sparc Implement: API Design (s-morgan-jeffries/apple-mail-fast-mcp, 104 stars), API Design (IngvarConsulting/unica, 215 stars), Mas API Contract (AUTO-MAS-Project/AUTO-MAS, 707 stars) and Azsdk Common Pipeline Fixer (Azure/azure-sdk-tools, 134 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
ruvnet (a GitHub user) maintains it in ruvnet/ruflo, which has 74,012 GitHub stars. The repository holds 264 skills in this directory. The repository was last updated on October 7, 2026.
Source: ruvnet/ruflo on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.