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fix(#750): claw prompt (no arg) now emits error_kind:missing_prompt with non-null hint

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YeonGyu-Kim
2026-05-26 20:03:14 +09:00
parent 2dfb7af66e
commit ac925ed41c
2 changed files with 6 additions and 1 deletions
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2
ROADMAP.md
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@@ -7665,3 +7665,5 @@ Original filing (2026-04-18): the session emitted `SessionStart hook (completed)
748. **`claw mcp bogussubcmd --output-format json` returned `error_kind: null` when an unknown subcommand was passed — `render_mcp_usage_json(Some("bogus"))` set `status:"error"` but left `error_kind` absent — while `agents bogussubcmd` emits `error_kind:"unknown_agents_subcommand"`** — dogfooded 2026-05-26 on `04eb661e`. Fix: add `error_kind: "unknown_mcp_action"` to `render_mcp_usage_json` when `unexpected.is_some()`; remains `null` for the `help` path (`unexpected: null`). Source: Jobdori dogfood on `04eb661e`, 2026-05-26.
749. **`claw compact --output-format json` returned `hint: null` — `compact_interactive_only_error()` returned a single-line string with no `\n` between short error and remediation text, so `split_error_hint` couldn't populate the hint field** — identified by gaebal-gajae on `04eb661e`. Same class as #738 / #745 / #746. Fix: add `\n` before the remediation text in `compact_interactive_only_error`. Regression guard: extended `compact_subcommand_json_help_fails_fast_when_stdin_closed` to also assert `hint` is non-empty and mentions `/compact` or `--resume`. Source: gaebal-gajae dogfood on `04eb661e`, 2026-05-26.
750. **`claw prompt --output-format json` (no text argument) returned `error_kind:"unknown"` and `hint: null`** — dogfooded 2026-05-26 on `2dfb7af6`. The error string `"prompt subcommand requires a prompt string"` had no prefix prefix for classifier and no `\n` for hint extraction. Fix: (a) prefix with `"missing_prompt: "` + newline before usage hint; (b) add `message.starts_with("missing_prompt:")` → `"missing_prompt"` classifier arm. Result: `error_kind:"missing_prompt"`, `hint:"Usage: claw prompt <text> or echo '<text>' | claw"`. Source: Jobdori dogfood on `2dfb7af6`, 2026-05-26.

5
rust/crates/rusty-claude-cli/src/main.rs
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@@ -316,6 +316,8 @@ fn classify_error_kind(message: &str) -> &'static str {
"unsupported_config_section"
} else if message.contains("unknown_plugins_action") {
"unknown_plugins_action"
} else if message.starts_with("missing_prompt:") {
"missing_prompt"
} else if message.contains("is a slash command")
|| message.starts_with("interactive_only:")
// #735: "slash command /X is interactive-only" emitted by interactive-only guard
@@ -1147,7 +1149,8 @@ fn parse_args(args: &[String]) -> Result<CliAction, String> {
"prompt" => {
let prompt = rest[1..].join(" ");
if prompt.trim().is_empty() {
return Err("prompt subcommand requires a prompt string".to_string());
// #750: provide error_kind-compatible prefix + \n for hint extraction
return Err("missing_prompt: prompt subcommand requires a prompt string.\nUsage: claw prompt <text> or echo '<text>' | claw".to_string());
}
Ok(CliAction::Prompt {
prompt,