OpenSpec

Spec-driven development for AI coding assistants.

Data confidence94/100
Source coverage90/100
Publish confidence92/100
Evidence checkedJul 30, 2026

Evidence Watch

ToolVitals has useful public signals for OpenSpec, but not enough evidence to publish a strong verdict score yet.

GitHub source94/100 data confidence
About this tool

What ToolVitals knows about OpenSpec

Spec-driven development for AI coding assistants.

This tool has an OSI-approved open-source license signal.

Maintenance and shipping signals are strong.

Source-visible projectAI Agent ToolsOSI-approved OSSEvidence Watch
Repository

GitHub Activity

TS
Fission-AI/OpenSpec
Stars63,213
Forks4,370
Watchers63,213
Open Issues329
Primary Language
TypeScript
Last Commit
Today
Releases 90d
6
Default Branch
main
License
MIT
Repository Status
Active repository
Evidence

Signal Quality

Data Confidence94/100Strong
Source Coverage90/100Strong
Publish Confidence92/100Strong

ConfidenceHigh-confidence score from multiple public signals.

Zombie RiskNo meaningful zombie signal right now.

How ToolVitals scores work
Openness

License Evidence

Class
OSI-approved OSS
License
MIT

This tool has an OSI-approved open-source license signal.

Sources

Tracked Sources

Profile

Classification

Category
Developer Tools
Use Case
AI Agent Tools
Openness
OSI-approved OSS
License
MIT
Tool Mode
Source-visible project
Score Model
Open Source Maintenance
Score Visibility
Evidence Watch
Status
Active
Maintainers

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Latest

Recent Updates

Tags
spec-driven-developmentplanningaideveloper-toolsopen-sourcecontext-engineeringengineeringprdsddsdlcspecspecificationai-coding-assistantspecifications

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