Active OSI-approved OSS Developer Tools Developer Infrastructure

OpenSpec

Spec-driven development for AI coding assistants.

Data confidence94/100
Source coverage90/100
Publish confidence92/100
Pricing checkedNo current pricing evidence
Score Breakdown

Public signal read

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How to read this

These bars are a reader-facing view of the ToolVitals evidence model. They summarize maintenance, shipping, confidence, and decay signals. Hosted pricing evidence is shown separately.

Activity
Recent commits, releases, changelog, package, and product-motion signals.
Reliability
Maintenance posture from recency, release evidence, availability, and repo signals.
Adoption
Public footprint from GitHub stars, forks, and watchers when available.
Sustainability
Longer-term posture combining health, activity, adoption, confidence, and decay risk.
ToolVitals87/100Health87/100Shipping78/100Zombie Risk0/100
Overall Score 87 Active
Activity 78
Reliability 87
Adoption 94
Sustainability 88

Score History

Scores collected daily. More data points appear as the tracker runs.

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 project Developer Infrastructure OSI-approved OSS Scored Intelligence
Repository

GitHub Activity

TS
Fission-AI/OpenSpec
Stars 54,341
Forks 3,806
Watchers 54,341
Open Issues 400
Primary Language
TypeScript
Last Commit
Today
Releases 90d
4
Default Branch
main
License
MIT
Repository Status
Active repository
Evidence

Signal Quality

Data Confidence 94/100 Strong
Source Coverage 90/100 Strong
Publish Confidence 92/100 Strong

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
Pricing Scope
No hosted pricing tracked

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

Sources

Tracked Sources

Profile

Classification

Category
Developer Tools
Use Case
Developer Infrastructure
Openness
OSI-approved OSS
License
MIT
Pricing Scope
No hosted pricing tracked
Tool Mode
Source-visible project
Score Model
Open Source Maintenance
Score Visibility
Scored Intelligence
Status
Active
Hosted Pricing

Pricing Evidence

Scope
No hosted pricing tracked
Free Tier
Not detected
Currency
USD
Tracked Plans
0
Maintainers

README Badge

Show this ToolVitals status in project docs.

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Latest

Recent Updates

Tags
spec-driven-developmentplanningaideveloper-toolsopen-sourcecontext-engineeringengineeringprdsddsdlcspecspecification

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