trueline is an open-source project built for developers using Claude Code.

Yes — trueline is open source under the MIT license and free to use.

What platforms does trueline run on?

trueline runs on the command line. It can also be self-hosted.

Is trueline still maintained?

PulseGate's liveness checks currently classify trueline as active.

What are alternatives to trueline?

Similar tools tracked by PulseGate include claude-devtools, Claude Traces Viewer, and claudetracing.

trueline is developed by simple-tools1.

When did trueline launch?

trueline first shipped in 2026.

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trueline

Name: trueline
Author: simple-tools1

PyPIInfrastructure

trueline is an open-source Spec-Driven Development (SDD) framework designed for users of Claude Code. It provides a CLI-based workflow for defining and validating specifications, streamlining development processes for AI code agents. Ideal for developers seeking structured, spec-driven coding with Claude Code.

Open SourceMIT

CLISelf-hosted

Visit PyPI

Overview

5 features

trueline sits in PulseGate's Frameworks & SDKs category. It focuses on enabling Claude Code users to implement spec-driven development workflows efficiently. It is built as an open-source project for developers using Claude Code. trueline is open source under the MIT license. The product ships for the command line, and it can be self-hosted.

Behind trueline is simple-tools1, and the product first shipped in 2026. Key capabilities include spec-driven development, CLI integration, and Claude Code support.

Spec-driven development
CLI integration
Claude Code support
MIT licensed
Extensible framework

Built with & integrations

Runs on: CLISelf-hosted

Trust & compliance

LicenseMIT

Verified signals

HTTPS Open Source Free tier

Recent events

Latest indexed changes and source events

IndexedJul 15, 4:25 PM
trueline verified by the PulseGate indexer
Source: PulseGate indexerOpen ↗

Frequently asked questions about trueline

What does trueline do?: Trueline focuses on enabling Claude Code users to implement spec-driven development workflows efficiently. It is catalogued under Frameworks & SDKs on PulseGate.
Who is trueline for?: trueline is an open-source project built for developers using Claude Code.
Is trueline free?: Yes — trueline is open source under the MIT license and free to use.
What platforms does trueline run on?: trueline runs on the command line. It can also be self-hosted.
Is trueline still maintained?: PulseGate's liveness checks currently classify trueline as active.
What are alternatives to trueline?: Similar tools tracked by PulseGate include claude-devtools, Claude Traces Viewer, and claudetracing.claude-devtools Claude Traces Viewer claudetracing
Who makes trueline?: trueline is developed by simple-tools1.
When did trueline launch?: trueline first shipped in 2026.

At a glance

Platforms: Cli
Languages: English
License: MIT
First seen: Jul 15, 2026
Activity: 🟢 Active
Status: 🟢 Active
Built for: developers using Claude Code
Model: Open source
Solves: Enabling Claude Code users to implement spec-driven development workflows efficiently.

Developer

simple-tools1

Live coverage

Confidence: Low · 64
Indexed: Jul 15, 2026
Lifecycle: Alive
Activity: Active
First seen: Jul 2026
Last seen: 6d ago

Identity audit (9)

Entity ID: cmrmajz7v003ygn36gxr3hm1g
Slug: trueline-pypi-org
Verification state: Indexed for public listing
Claim / listing state: Unclaimed · listed: yes
Index status: Included in index
Latest evidence snapshot: Jul 15, 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Last updated: Jul 15, 2026
Canonical URL: https://pypi.org/project/trueline

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