Sponge runs as a background service with a terminal chat and a terminal status view. Ask a question, and it gathers sources, keeps their text, and writes a report that cites them.
Sponge is in private preview, and there is no public install yet. You can use Sponge Library, the hosted library at sponge.computer, today.
spongev2 project create ~/Research/reefs --name Reefs \
--question 'What does the evidence say about reef recovery?'
spongev2 tui ~/Research/reefsCommands from the private preview. Read the Knowledge pack post, or call the Sponge Library API.
Follow a research question from the terminal chat to a cited report, then open a source to check the evidence.
Create a project with a question. Sponge gathers the sources and keeps the report current.
Give it a question and a folder. Sponge saves each source’s text and records its work, so a task continues after you close the terminal.
Ask in the terminal chat, or use /deep for a planned investigation within the limits you set. Missing search results and partial evidence stay visible.
Schedules refresh the report from saved sources, and deep schedules can gather new public sources. Your own notes outside the generated section stay as you wrote them.
You can read the daily paper digest Sponge writes and use the hosted library today.
See how Sponge turns a question into a report with sources you can check.
Read the Knowledge pack postThe Hraness literature pipeline runs Sponge every day to watch for new papers, write a digest, and publish it at hraness.com/papers.
See the papersSave articles and PDFs as dated, readable copies with your highlights and notes, and let your own AI agent, such as Codex or Claude Code, read and cite them through the API.
Open Sponge LibrarySponge researches and checks its drafts. You decide which strategy it uses and what it publishes.
A research tool that runs on your machine. Ask a question, then read a report with saved sources you can check.
Sponge is in private preview, with no public install yet. Read the Knowledge pack post to see how it works, or use Sponge Library today.
Sponge uses the AI coding subscriptions you already have. You keep your existing provider account.
Sponge tests a proposed research strategy against your current one. You choose whether to adopt it and can return to the previous strategy.
Yes. Connect an existing browser sign-in to capture pages you can access. Sponge keeps the saved source text.
The Hraness literature pipeline runs Sponge every day to watch for new papers, write a digest, and publish it at hraness.com/papers.
The hosted library at sponge.computer, and the first Sponge product. It keeps a dated copy of each article or PDF you save, anchors your highlights and notes to it, and gives your agent a scoped, expiring token to read and cite it. Sign in with your Sponge account, or create one.
Hraness builds Sponge. Hraness is a software studio that makes tools for AI agents and for people, from agent memory to music. Most are open source.
Private preview
See how Sponge works with the rest of the Knowledge pack.
Sponge is in private preview, and there is no public install yet. You can use Sponge Library, the hosted library at sponge.computer, today.
