US federal income tax over figures you supply
One command on the Federal income tax server, callable over MCP as get_federal_capabilities. Every result carries the method it used, the rule pack it was pinned to, what is still missing and whether coverage was complete, for a licensed professional to review.
What it needs, and why
This command takes no arguments: it reports what the server covers. Which calculators taxagent-federal exposes, what it will not compute, and the rule pack its figures are pinned to. Reading the registry before promising anything is the difference between a refusal and a plausible wrong answer.
Requests it answers
- “What federal tax can this server actually compute?”
- “What does the federal server refuse to calculate?”
An agent with these skills loaded picks the command from phrasing like that, asks for whatever input is missing, and reports the figures with the method that produced them.
Run it
scripts/mcp_server.sh --server federalThe same command is exposed by taxagent-federal, so Claude, Claude Code, Codex, Cursor and any other MCP client can call it directly. Analysis only. No tool in this server places orders, modifies custodian records or files returns. This server holds no client data: every figure arrives in the call and nothing is stored. Results are estimates over those figures, not a return and not tax advice.
Scripted cases that exercise it
1 of the 71 console cases call this command on a real server over JSON-RPC and assert the outcome. Every one runs on every build, and all of them are listed on the case inventory.
| Case | What it asks | What it shows | Outcome |
|---|---|---|---|
federal-capabilities | What the server will not compute | The boundary stated by the server itself: no return, no credits, no state tax, and AMT and section 199A never folded together. | completed |
Limits it inherits from taxagent-federal
- A return. AMT and the section 199A deduction are computed separately and are not folded into one liability.
- Credits, self-employment tax and the additional Medicare tax.
- State and local tax.
The server, its other 6 commands and what it deliberately leaves alone are on the Federal income tax page.