What is spec-flow?
spec-flow is a Claude Code mod by japan-da-man that [mod] [skills] Turns a feature request into a spec, one approved step at a time: clarify the request (asking you what is unclear), survey every affected screen and feature with subagents,. It is listed under Agents & automation and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | japan-da-man |
| Repository | japan-da-man/claude-code |
| Popularity | no public popularity data yet |
| Category | Agents & automation |
| Security | Review before installing (76/100) |
| Rank | #3,519 of 5,272 Claude Code mods; #271 in Agents & automation |
| Last commit | 2026-10-05 |
| Hooks | 5 events |
| Sees | every tool call |
| Draws on | AbovePrompt, Pane |
Is spec-flow safe to install?
spec-flow scores 76/100 on the MCPMods security check: Review before installing. Things to review: writes files or config. It passed 4 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts no processes | Pass |
| Writes files or config | Review |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| Drives Claude (model calls, prompts) | Note |
| Validator reported problems | Note |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.now | |
$.command.register | |
$.fs.exists | reads files |
$.fs.list | reads files |
$.fs.read | reads files |
$.fs.write | writes files |
$.prompt.submit | drives Claude |
$.state.get | |
$.state.set | |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install spec-flow?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/japan-da-man/claude-code claude plugin validate ./claude-code/plugins/spec-flow
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add japan-da-man/claude-code && claude plugin install spec-flow@japan-da-man
Or ask Claude to set it up
Paste this into Claude Code and it installs spec-flow for you:
Install the "spec-flow" Claude Code mod from https://github.com/japan-da-man/claude-code/tree/main/plugins/spec-flow. Run claude plugin validate on it first and show me what it can access before you enable it.
More from japan-da-man/claude-code
This repository has 6 Claude Code mods on MCPMods.
- blast-radius: [mod] Holds risky shell commands (rm -rf, git reset --hard, force push, git clean, migrations, find -delete, xargs rm, a (Low risk)
- replay-theater: [mod] Records the file edits Claude makes in a turn; /replay or r steps through the diffs one at a time in a pane. Based (Low risk)
- todo-mod: [mod] TODO pane: check a task to have Claude run it (Low risk)
- token-weather: [mod] A live forecast of the context window above the prompt: weather icon, fill, tokens, a chart of the last turns and (Low risk)
- usage-stats: [mod] Usage stats pane: sessions, messages, tokens, active days, streak, favorite model and a daily heatmap (Low risk)