Who should use tessen?

tessen is an open-source project built for AI developers.

Does tessen have a free plan?

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

What platforms does tessen run on?

tessen runs on the web and the command line. It can also be self-hosted.

Is tessen still active?

Unverified. tessen has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to tessen?

Similar projects tracked by PulseGate include tessen-cli, tse-agent, and tessera-agents.

Is tessen open source?

Yes — tessen is open source under the MIT license.

Back to the index

tessen

tessen.devInfrastructure

tessen is an open-source Python package that provides a harness for AI agents, enabling developers to capture model calls, map codebases, and generate frame-aware PR fixes locally. It supports multiple AI providers and is designed for secure, local debugging of agent workflows.

Open SourceMITWebCLISelf-hosted

Visit tessen.dev

Overview

5 features

tessen sits in PulseGate's Frameworks & runtimes category. Enabling developers to manage, trace, and debug AI agent workflows locally without sharing source code. It is built as an open-source project for AI developers. tessen is open source under the MIT license. It runs on the web and the command line, and it can be self-hosted.

tessen first shipped in 2026. Among its 5 catalogued features are agent harness, model call tracing, and codebase mapping.

Summary written by a language model from the project’s public pages.

Agent harness
Model call tracing
Codebase mapping
PR generation
Local execution

Built with & integrations

AI providers

multiple

Runs on

BrowserCLISelf-hosted

Trust & compliance

License

MIT

Verified signals

HTTPSOpen SourceFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed14 Jun · 22:11 UTC
Listing verified against its public source
Source: PulseGate · Open

Frequently asked questions about tessen

What is tessen?: Enabling developers to manage, trace, and debug AI agent workflows locally without sharing source code. It is catalogued under Frameworks & runtimes on PulseGate.
Who should use tessen?: tessen is an open-source project built for AI developers.
Does tessen have a free plan?: Yes — tessen is open source under the MIT license and free to use.
What platforms does tessen run on?: tessen runs on the web and the command line. It can also be self-hosted.
Is tessen still active?: Unverified. tessen has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to tessen?: Similar projects tracked by PulseGate include tessen-cli, tse-agent, and tessera-agents.tessen-cli tse-agent tessera-agents
When did tessen launch?: tessen first shipped in 2026.
Is tessen open source?: Yes — tessen is open source under the MIT license.

At a glance

Platforms: CLI · Web
Languages: English
License: MIT
Built for: AI developers
Model: Open source
Solves: Enabling developers to manage, trace, and debug AI agent workflows locally without sharing source code.

Registered as

PyPI: tessen

Index record

Indexed: 14 Jun 2026
Lifecycle: Alive
Last seen: 14 Jun 2026

Identity audit (12)

Slug: tessen-tessen-dev
Lifecycle last checked: 8 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 14 Jun 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Written by a language model from the project's public pages.
Category from: Recorded source: taxonomy-pass-b.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model from page content.
Canonical URL: https://tessen.dev/

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