Ruflo is an execution and coordination layer for Claude Code and Codex that equips AI coding agents with tools, memory, control loops, sandboxes, and collaboration mechanisms. Developers use it to organize specialized agents into swarms, coordinate workflows, retain knowledge across sessions, and communicate across machines. The catalogue entries are Ruflo’s skills, commands, agents, hooks, and plugin components.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/ruvnet/ruflo/sparc-methodologynpx skills add ruvnet/ruflo --skill sparc-methodologygit clone --depth 1 https://github.com/ruvnet/rufloWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/ruvnet/ruflo/sparc-methodology)<a href="https://agentmods.dev/skills/ruvnet/ruflo/sparc-methodology"><img src="https://agentmods.dev/badge/skills/ruvnet/ruflo/sparc-methodology.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00079 | $0.00759 |
| Opus 5 | $0.00039 | $0.00380 |
| Sonnet 5 | $0.00016 | $0.00152 |
| Haiku 4.5 | $0.00008 | $0.00076 |
Grade A, and why
sparc-methodology scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
3 near-identical copies found in the catalogue:
- sparc-methodology — 100% identical, 0 lines differ
- sparc-methodology — 100% identical, 0 lines differ
- sparc-methodology — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sparc Methodology Skill
Purpose
SPARC development workflow: Specification, Pseudocode, Architecture, Refinement, Completion. A structured approach for complex implementations that ensures thorough planning before coding.
When to Trigger
- new feature implementation
- complex implementations
- architectural changes
- system redesign
- integration work
- unclear requirements
When to Skip
- simple bug fixes
- documentation updates
- configuration changes
- well-defined small tasks
- routine maintenance
Commands
Specification Phase
Define requirements, acceptance criteria, and constraints
npx @claude-flow/cli hooks route --task "specification: [requirements]"
Example:
npx @claude-flow/cli hooks route --task "specification: user authentication with OAuth2, MFA, and session management"
Pseudocode Phase
Write high-level pseudocode for the implementation
npx @claude-flow/cli hooks route --task "pseudocode: [feature]"
Example:
npx @claude-flow/cli hooks route --task "pseudocode: OAuth2 login flow with token refresh"
Architecture Phase
Design system structure, interfaces, and dependencies
npx @claude-flow/cli hooks route --task "architecture: [design]"
Example:
npx @claude-flow/cli hooks route --task "architecture: auth module with service layer, repository, and API endpoints"
Refinement Phase
Iterate on the design based on feedback
npx @claude-flow/cli hooks route --task "refinement: [feedback]"
Example:
npx @claude-flow/cli hooks route --task "refinement: add rate limiting and brute force protection"
Completion Phase
Finalize implementation with tests and documentation
npx @claude-flow/cli hooks route --task "completion: [final checks]"
Example:
npx @claude-flow/cli hooks route --task "completion: verify all tests pass, update API docs, security review"
SPARC Coordinator
Spawn SPARC coordinator agent
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 119 lines · 79 tokens per session scan A 9c861dd4ab15
sparc-methodology is a skill published in the GitHub repository ruvnet/ruflo (70,734 stars, last pushed today), licensed MIT. It adds 79 tokens to every session and 759 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
compare-harnesses
Diff two scaffolded harnesses (ADR-031). Reports manifest meta drift + host list + per-file fingerprint changes (added/removed/changed). Exits 0 IDENTICAL, 1 DRIFT, 2 missing manifest. Use --bundle for the ADR-031 schema-1 JSON envelope.
diag-harness
Kernel-version skew check (ADR-027). Reports manifest surface + manifest kernel + installed kernel + verdict (match/patch-diff/minor-diff/major-diff). Exits 1 on minor/major skew with a copy-pasteable npm install @metaharness/[email protected] next step. Exits 2 if no .harness/manifest.json at path.
repo-genome
7-section readiness scorecard for a LOCAL repo. Reports repo type + agent topology + MCP risk + test confidence + release readiness + recommended harness plan + scorecard. Exit 0 ready, 1 needs-work, 2 blocked. --json for the 6-field scorecard, --bundle for the ADR-031 schema-1 envelope.
score-harness
5-dimension scorecard (0-100, grade A/B/C/F) for a scaffolded harness. Dimensions: Repo understanding (25%), Agent usefulness (25%), MCP safety (20%), Test coverage (15%), Publish readiness (15%). Emits a 6-field badges block (score + mcpRisk + 4 booleans) ready for the harness README. Exit 0 A/B, 1 C, 2 F.
upgrade-harness
Drift detection + apply for a scaffolded harness. Re-renders the template with the same vars, computes added/removed/changed file plan, and applies with Git-style conflict markers or .rej files. Default is dry-run.
verify-witness
Verify the Ed25519 witness manifest of a scaffolded harness. Fast yes/no signature check that proves the publisher signed this exact file set — separate from the full release-readiness umbrella in validate-harness.