prosa-webp-widgets

theme-aware WebP cards for your GitHub profile, powered by prosa

prosa turns scattered Claude Code, Codex, Cursor, Gemini, and Antigravity session histories into one local, searchable work log. prosa-webp-widgets renders that work log as small, static WebP cards you can drop into a GitHub profile README — five same-size widgets, each in a light and a dark theme that switches automatically with the reader's color scheme.

It is, in spirit, lastfm-webp-widgets for AI-agent usage analytics instead of music: low information density, hierarchy carried by type and color, no live server required to render.

Widgets

Every card is a rounded, GitHub-themed panel with embedded Roboto, rendered at 2260x696 from a 1130x348 logical layout (@2x). The previews below adapt to your GitHub theme — light cards in light mode, dark cards in dark mode.

Agent activity

Sessions captured in the window, the top agents by session count, and the estimated total token spend.

Agent mix

Total tokens across agents, split into input and output, with the leading agents ranked by usage.

Model spend

Estimated model cost for the window, the number of models touched and cached tokens, with the top models by spend.

Project focus

The most active project and the runners-up by session count. Use --exclude-project to keep private repositories out of the card.

Delegation

Share of sessions run as subagents, the total child agents and max fan-out, with the agents that delegate the most.

Quick start

Preview with mock data — deterministic, no prosa server needed:

just run render --mock --out ./out/mock

This writes all ten files (light and -dark) under out/mock/.

Render from prosa

export PROSA_SERVER_URL='https://prosa.example.com'
export PROSA_APP_TOKEN='prosa_app_...'

just run render --last 30d --out ./out/prod

Upload to S3

export S3_BUCKET_NAME='your-bucket'
export AWS_REGION='us-east-1'
export AWS_ACCESS_KEY_ID='...'
export AWS_SECRET_ACCESS_KEY='...'
export S3_PREFIX='prosa-widgets'
export S3_PUBLIC_BASE_URL='https://cdn.example.com'

just run render --last 30d --out ./out/prod --upload

Optional:

• --exclude-project owner/repo (repeatable or comma-separated) to hide projects from project-focus.
• PROSA_HTTP_TIMEOUT or --timeout to control the remote fetch timeout (default 30s).
• S3_ENDPOINT_URL for S3-compatible storage.
• S3_ACL for buckets that still require a canned ACL.
• CHROMIUM_BROWSER_BINARY_PATH to use an existing Chrome/Chromium binary.

Embed in a profile README

Point a <picture> at the uploaded light/dark pair so the card follows the reader's theme:

<picture>
  <source media="(prefers-color-scheme: dark)" srcset="https://cdn.example.com/overview-dark.webp">
  <img src="https://cdn.example.com/overview.webp" width="800" alt="Agent activity">
</picture>

Install

• Prebuilt binaries for linux/darwin × amd64/arm64 are attached to each release, alongside checksums and SBOMs.
• Docker images are published to the GitHub Container Registry as ghcr.io/c3-oss/prosa-webp-widgets (multi-arch).
• From source with devbox and just (see below).

Development

devbox shell
just test
just build

AGENTS.md is the canonical guide — conventions, layout, recipes, hooks, and what is intentionally not here.

License

To the extent possible under law, Caian Ertl has waived all copyright and related or neighboring rights to this work. In the spirit of freedom of information, I encourage you to fork, modify, change, share, or do whatever you like with this project! ^C ^V