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 skills add tzachbon/smart-ralph --skill spec-workflowgit clone --depth 1 https://github.com/tzachbon/smart-ralphWrote 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/tzachbon/smart-ralph/spec-workflow)<a href="https://agentmods.dev/skills/tzachbon/smart-ralph/spec-workflow"><img src="https://agentmods.dev/badge/skills/tzachbon/smart-ralph/spec-workflow/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/tzachbon/smart-ralph/spec-workflow"><img src="https://agentmods.dev/badge/skills/tzachbon/smart-ralph/spec-workflow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00091 | $0.01062 |
| Opus 5.5 | $0.00036 | $0.00425 |
| Sonnet 5.5 | $0.00018 | $0.00212 |
| Haiku 4.5 | $0.00009 | $0.00106 |
Grade A, and why
spec-workflow 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spec Workflow
Spec-driven development transforms feature requests into structured specs through sequential phases, then executes them task-by-task.
Decision Tree: Where to Start
| Situation | Command |
|---|---|
| New feature, want guidance | /ralph-specum:start <name> <goal> |
| New feature, skip interviews | /ralph-specum:start <name> <goal> --quick |
| Large feature needing decomposition | /ralph-specum:triage <goal> |
| Resume existing spec | /ralph-specum:start (auto-detects) |
| Jump to specific phase | /ralph-specum:<phase> |
Single Spec Flow
start/new -> research -> requirements -> design -> tasks -> implement
^
optional prototype overlay, then return
Each phase produces a markdown artifact under the resolved <basePath>/. Normal mode pauses for approval between phases. Quick mode runs all phases then auto-starts execution.
Prototype is an optional overlay, not a main phase. The main phase remains research, requirements, design, tasks, or execution; live prototype work is stored in activePrototypes. Resolve the configured spec root and basePath before any overlay operation. Follow references/phase-transitions.md when suggesting, starting, resuming, cancelling, or consuming prototype evidence.
Phase Commands
| Command | Agent | Output | Purpose |
|---|---|---|---|
/ralph-specum:research |
research-analyst | research.md | Explore feasibility, patterns, context |
/ralph-specum:requirements |
product-manager | requirements.md | User stories, acceptance criteria |
/ralph-specum:design |
architect-reviewer | design.md | Architecture, components, interfaces |
/ralph-specum:tasks |
task-planner | tasks.md | POC-first task breakdown |
/ralph-specum:implement |
spec-executor | commits | Autonomous task-by-task execution |
/ralph-specum:prototype |
prototype-builder | prototypes/<id>.md | Test one falsifiable design question in isolation |
What ships with it
1 file 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.
- 1mo ago First seen · 104 lines · 91 tokens per session scan A dd2c39dafc86
spec-workflow is a skill published in the GitHub repository tzachbon/smart-ralph (559 stars, last pushed 1mo ago), licensed MIT. It adds 91 tokens to every session and 1,062 once invoked, about $0.0004 per session on Opus 5.5. 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.
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