How tools are scored
A tool is AI-friendly when an agent can use it without a person clicking for it. Six checks, 0 to 3 points each, 18 total.
| Check | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
| MCP or agent integration | No way for an agent to drive it. | Unofficial or early MCP server, or works through another tool's MCP. | Mature community MCP server or plugin, widely used. | Official MCP server or first-party agent integration. |
| Headless, CLI or API | GUI only. | Some automation (plugin scripting inside the GUI). | Scriptable or batch mode, with gaps. | Full headless CLI or HTTP API; runs in CI. |
| Text project files | Binary or opaque outputs only. | Text exists but is noisy (GUIDs, generated YAML) or export only. | Mostly text; some binary assets. | Plain, diffable text an LLM can read and edit directly. |
| Docs and llms.txt | Sparse or outdated docs. | Usable docs with gaps. | Thorough reference docs. | Thorough docs plus llms.txt or a docs MCP. |
| Open source or free tier | Paid only. | Free tier or free under a revenue cap. | Free to use, or source available. | Open source (OSI license) or CC0. |
| Active in 2026 | No meaningful updates in 2026. | Occasional 2026 updates. | Regular 2026 releases or commits. | Commits or releases in the last 30 days. |
What is measured and what is judged
Measured by script. Every link is loaded, GitHub repos are read for their last commit, stars and license, and each docs site is probed for a real llms.txt. Activity for GitHub-hosted tools comes straight from the last commit date, and the docs score gets its third point only when llms.txt exists.
Judged by hand. MCP maturity, how complete the CLI is, and whether project files are clean text. These were checked against each project's docs and repo in November 2026.
Badges
A row shows a badge for full marks (3 of 3) on MCP, CLI, text files or open source, plus llms.txt when the docs publish one, so a glance tells you what an agent can lean on. Open a row to see all six scores.
Add a tool
Anyone can suggest a tool; Isaac reviews each one before it appears. Agents can read the whole list as tools.json or llms.txt. The source data is one typed file, so adding a tool is one object.
65 tools listed today.