Consolidated `method`-dispatch tools return unhelpful "unknown method" errors (don't list supported methods)

まず labels.go から始めて、そのメソッドディスパッチエラーを比較し、続いて pull_request_read、pull_request_review_write、issue_read、sub-issue write、actions、projects、ui_get のハンドラーを調べます。認識されないメソッドではサポートされている値が列挙され、省略されたメソッド入力は必須として報告されることを確認します。両方の場合について、結果として生成されるツールエラーメッセージを検証します。

Describe the bug

The consolidated tools that dispatch on a method argument return a bare unknown method: when the method is unrecognized, without listing the valid methods. labels.go already does the helpful thing ("... Supported methods are: create, update, delete"); the other method-dispatch tools don't, so the behavior is inconsistent.

Separately, pull_request_review_write decodes arguments with mapstructure.WeakDecode (it does not use RequiredParam like the other tools), so omitting the required method produces "unknown method: " with an empty value — instead of telling the caller that method is required.

Affected tools: pull_request_read, pull_request_review_write, issue_read, sub-issue write, actions (list/get/run), projects (list/get/write), ui_get.

Affected version

Version: v1.3.0
Commit: 34227037fc48771baea9af7163e28cb6556ef287
Build Date: 2026-06-11T14:16:55Z

Steps to reproduce the behavior

1. Call pull_request_review_write with the required method omitted, e.g. { "owner": "o", "repo": "r", "pullNumber": 42 }.
2. View the output.
3. Server returns (tool-result error, HTTP 200 isError):

unknown method:
(empty after the colon — method was never supplied, but the error doesn't say it's required or what the valid values are).

Or, with an unrecognized value { "method": "bogus", ... }:

unknown method: bogus
No list of supported methods. The same bare error occurs on pull_request_read, issue_read, actions_, projects_, and ui_get for any unrecognized method.

Expected vs actual behavior

Expected: the error names the supported methods (matching labels.go, e.g. unknown method: bogus. Supported methods are: create, submit_pending, delete_pending, resolve_thread, unresolve_thread), and an omitted required method reports method is required. Supported methods are: ....

Actual: a bare unknown method: with no guidance; for pull_request_review_write an omitted method yields unknown method: (empty), which reads like a routing bug rather than a missing required argument.

Logs
Tool-result error text returned by the server:

unknown method:
unknown method: bogus