Parallel Throughput
Agents work cards side by side, each isolated on its own branch and worktree.
A local-first project tracker for you and your agents.
Spec0 takes a spec from first draft to landed merge — each one a contract, every change reviewed, every merge on the record. Entirely on your machine. Built for the agents you already run.
You're on the list — your invite will land by email.
No account · Your data never leaves your machine
Key value
Less coordinating.
More
shipping.
Full Accountability
Progress, review threads, checks, and commits stay on the card — the whole story, on the record.
Zero Lock-in
Local-first SQLite on your machine, an open MCP protocol, and the agents you already run.
Core capabilities
Three capabilities.
One
loop.
Works with any agent
If it speaks MCP, it can claim cards. Bring the agents you already run.
Claude CodeCodexCursorWindsurfDevin DesktopOpenCode
Local-first
One SQLite file per project, on your machine. No cloud, no account.
Not a harness
Agents run in your terminal, with your logins. Spec0 plans, tracks, and verifies.
How it works
Follow one card.
Spec to landed
merge.
Write requirements, design, and tasks — the card is the contract.
Author the spec
Claude or Codex picks it up over MCP, on an isolated branch.
An agent claims
Threads on the diff, checks green, revisions if it needs them.
Review the diff
You or the agent merge; Spec0 verifies it read-only and records it.
The merge lands
Loop engineering
Loop engineering, built in.
01 · plan
The card is the contract.
Requirements, design, and tasks with verification built in — every card is a real spec, not a
prompt. Whoever claims it reads the same contract, and nothing ships until it clears.
Show token cost on each agent run
Loomwright Todo Feature
Requirements Design
Requirements — tokens column on agent runs
The Insights view shows agent activity but not cost. Add a tokens column and a cumulative rollup per provider to the activity table.
Acceptance
Tokens column on the activity table
Hover shows cost per provider
WHEN a provider reports no usage, THE SYSTEM SHALL show —
```ts
const cost = usage.tokens * rate['claude-code'];
```
02 · track
Board for flow. List for order.
The same cards, the same progress — two ways to look at them. Priorities, due dates,
estimates, and blockers ride every card, and you always know who's on what and how far it's
come.
StageTitleMetaBranchAgentProgressUpdated
drafts Per-note custom system prompt Devin 5m ago
todo Show token cost on each agent run you 4h ago
doing Audio capture + transcribe audio-capture Claude 1/3 2m ago
doing Fix flicker when switching notes note-flicker-fix Codex 3/5 18m ago
review Improve diff rendering in note history diff-rendering Claude 5/5 1h ago
done Wire claude-code as a second provider Claude 2d ago
03 · delegate
The queue works itself.
Cards wait on the queue; your agents claim them over MCP and get to work. One claim per card
so nothing collides, progress streaming in as it happens, a full trail when it's done — no
babysitting.
Audio capture + transcribe
Requirements
Record audio inline in a note; the agent stream-transcribes it.
- Mic button in the note toolbar
- Transcript appears as a draft block under the audio
Design
Transcript lands as a draft block keyed to the audio row.
Tasks
- Mic button + recording state in the note toolbar
- Stream the transcript into a draft block
- Persist audio to the note rowoptional
Audio capture + transcribe
Claude is working on this card
Claude 2m ago
04 · review
You stay the architect.
Every submission lands as a review. Approve it and it ships; send it back and it gets fixed.
Nothing reaches your codebase without a review and a verdict.
Audio capture + transcribe
Claude wants to merge 2 commits into main from claude/c_01LMWR9AUD10CPT
Submit review Merge
Summary
Wires the capture pipeline end to end: a MediaRecorder wrapper arms the
selected input, falls back to the default device on unplug, and streams 10s windows
into the Whisper pass.
Root cause of the stalled recordings: the device-change listener never re-armed after an unplug — capture now survives the swap and the waveform stays live.
Scope: src/audio + tests. No schema or IPC changes.
Activity
Claude claimed this · 2h ago
Claude submitted for review · 1h ago
you started a review · 40m ago
All commits 0/3 viewed
src/audio/capture.ts +48 −6 Viewed
117 unmodified lines
118 const input = await pickDevice(preferred);
119- recorder = new MediaRecorder(stream);
119+ recorder = armRecorder(stream, {
120+ onDeviceLost: () => rearm(defaultInput()),
121+ });
Comment on line 120 Open
Re-arm reuses the session clock — added the monotonic assertion to the unplug spec.
Resolve comment
2 commits
7279847 test(audio): prove capture survives a device unplug Claude · 2h ago
Extends capture.spec.ts with a fake MediaDevices that yanks the input mid-recording — capture must fall back to the default device and keep the clock monotonic.
1 linked task
Prove capture survives a device unplug
+38 −0 · 1 file
bc9aba1 feat(audio): capture pipeline with device fallback + Whisper pass Claude · 2h ago
MediaRecorder wrapper with a device-change listener; on unplug it re-arms on the default input. The Whisper pass batches 10s windows off the live stream.
1 linked task
Capture audio with a device fallback
+81 −6 · 2 files
lint Lint required 12.0s
$ pnpm lint
Output
eslint src/audio — 0 errors, 0 warnings across the 3 changed files. Scoped to this card's diff; the repo-wide baseline is unchanged. Device-fallback branch covered by the new unplug spec; no unused exports introduced.
Prove capture survives a device unplug required
Required proof
The failing spec output (capture stalling when the input disappears) or reproduction notes — then the same spec passing against the fixed pipeline.
Evidence
Reproduced via a throwaway spec driving the real pipeline with a fake MediaDevices:
- FAIL before — 'capture keeps recording through an unplug' stalls at 00:07 when the input is yanked.
- PASS after — re-arm lands on the default input; the clock stays monotonic through the swap.
Transcribe a 30s clip end to end
Required proof
The transcript produced from a real 30-second capture, with the pipeline timing.
Evidence
Ran the pipeline against the bundled fixture clip: 30.4s in, 47 words out in 2.1s — the transcript matches the reference text, punctuation pass applied.
Waveform stays live while recording
Required proof
Screenshots of the live waveform while recording — including one taken straight after a device swap.
Evidence
PNG waveform-live-01.png
PNG waveform-live-02.png
PNG waveform-after-swap.png
Run the project gate for the change required
Required proof
The check bundle for the changed area — every required check green on this card's diff.
Evidence
lint · format · typecheck · unit green on the card's diff; stylelint and e2e-targeted skipped as not applicable — the full run is on the Checks tab.
05 · ship
Push when you're ready.
Done cards pile up on your branch — Spec0 counts what's ahead of origin, card by card, right
on the board. One push ships them; nothing leaves your machine until you say so.
Audio capture + transcribe
Claude is working on this card
Claude 12m ago
Fix flicker when switching notes
Codex 58m ago
Wire claude-code as a second provider
Claude 1h ago
Embed code-fence syntax highlighting
Codex 4h ago
Stream agent response into the editor
Claude 1d ago
Manifesto
Yours, actually.
Your code and your data stay on your machine. Spec0 plans and tracks — it never runs your agents and never holds your keys.
no accountno cloudlocal sqliteloopback-only mcp
FAQs
Straight answers.
works with every agent that speaks MCP
Claude CodeCodexCursorDevin DesktopOpenCode
you 44m ago
Does re-arm keep the same time base? The waveform clock jumped in QA.