Who should use specfill?

specfill is an open-source project built for developers using coding agents and prompt engineering workflows.

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

What platforms does specfill run on?

specfill runs on the command line.

Is specfill still active?

The GitHub repository shows 2 commits in the last 90 days.

Who develops specfill?

specfill is developed by kklemon.

When did specfill launch?

specfill first shipped in 2026.

Is specfill open source?

Yes — specfill is open source under the MIT license, developed on GitHub.

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specfill

Name: specfill
Author: kklemon

PyPIInfrastructure

specfill is an open-source interactive terminal UI that interviews users about underspecified project seed prompts and produces refined prompts. It is intended for developers preparing clearer specifications for coding agents and LLM-assisted development.

Open SourceMITCLI

Visit PyPI

Overview

5 features

In the CLI tools & terminal space, specfill takes a focused approach. It focuses on turning vague project seed prompts into detailed specifications suitable for coding agents. specfill is an open-source project aimed at developers using coding agents and prompt engineering workflows. The project is open source (MIT). It ships for the command line.

Behind specfill is kklemon, and it first shipped in 2026. Development happens publicly on GitHub with 2 commits in the last 90 days. Among its 5 catalogued features are interactive interview, prompt refinement, and Terminal UI.

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

Interactive interview
Prompt refinement
Terminal UI
Project specification
Coding-agent support

Built with & integrations

Runs on

CLI

Trust & compliance

License

MIT

Verified signals

HTTPSOpen SourceFree tierGitHubActive maintenance

Indexing history

What PulseGate has recorded for this listing

Indexed19 Aug · 23:07 UTC
specfill verified via PyPI Fresh Feed
Source: PyPI Fresh Feed · Open

Frequently asked questions about specfill

What does specfill do?: Specfill focuses on turning vague project seed prompts into detailed specifications suitable for coding agents. It is catalogued under CLI tools & terminal on PulseGate.
Who should use specfill?: specfill is an open-source project built for developers using coding agents and prompt engineering workflows.
Is specfill free?: Yes — specfill is open source under the MIT license and free to use.
What platforms does specfill run on?: specfill runs on the command line.
Is specfill still active?: The GitHub repository shows 2 commits in the last 90 days.
Who develops specfill?: specfill is developed by kklemon.
When did specfill launch?: specfill first shipped in 2026.
Is specfill open source?: Yes — specfill is open source under the MIT license, developed on GitHub.

At a glance

Platforms: CLI
Languages: English
Open source: Yes (GitHub)
License: MIT
First seen: 19 Aug 2026
Built for: developers using coding agents and prompt engineering workflows
Model: Open source
Solves: Turning vague project seed prompts into detailed specifications suitable for coding agents.

Registered as

GitHub: kklemon/specfill
PyPI: specfill

Developer

kklemon

Solo developer

GitHub

Open source

View on GitHub

Stars: 0
Forks: 0
Open issues: 0
Last commit: 19 Aug 2026
Commits 90d: 2
Contributors: 1
Authorship: Solo
Default branch: master

Index record

Indexed: 19 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 19 Aug 2026

Identity audit (13)

Slug: specfill-pypi-org
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 19 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model from page content.
Last updated: 19 Aug 2026
Canonical URL: https://pypi.org/project/specfill

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