cosh-tools 0.1.4

Tools crate for cosh - coding agent for the terminal
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146

//! Demonstrate `question`: the market-standard wire format, the lenient
//! decoding of model emission variants, and the validation contract behind
//! `ask`. The example is deterministic — `ask` validates the batch and
//! echoes the questions back; the user interaction itself happens in the
//! UI layer.
//!
//! Run with:
//!
//! ```bash
//! cargo run --example question
//! ```

use cosh_tools::question::Question;
use cosh_tools::question::types::{QuestionInput, QuestionType};

fn ask(label: &str, result: Result<cosh_tools::question::types::QuestionOutput, String>) {
    println!("== {label} ==");
    match result {
        Ok(out) => {
            println!(
                "  accepted {} question(s), answers: {}",
                out.questions.len(),
                out.answers.len()
            );
            for q in &out.questions {
                println!(
                    "  - [{}] {} ({})",
                    q.id,
                    q.question,
                    serde_json::to_string(&q.question_type).unwrap()
                );
                if let Some(p) = &q.purpose {
                    println!("      purpose: {p}");
                }
                println!("      required: {}", q.required);
                if let Some(rec) = &q.recommended {
                    println!("      recommended: {rec}");
                }
            }
        }
        Err(e) => println!("  rejected: {e}"),
    }
    println!();
}

fn main() {
    // ── 1. The tool description ----------------------------------------------
    let question = Question::new();
    println!("== 1. ask_questions schema ==");
    println!(
        "  name: {}, requires: {:?}\n",
        question.description_ask["name"].as_str().unwrap(),
        question.description_ask["inputSchema"]["required"]
    );

    // ── 2. The canonical market-standard wire shape (Claude Code style) -------
    let canonical: QuestionInput = serde_json::from_value(serde_json::json!({
        "questions": [
            {
                "question": "Which authentication method should we use?",
                "header": "Auth method",
                "multiSelect": false,
                "options": [
                    {"label": "OAuth 2.0 (Recommended)", "description": "Industry standard, supports multiple providers"},
                    {"label": "API key", "description": "Stateless, good for simple server-to-server calls"}
                ]
            },
            {
                "question": "What should the project be called?",
                "header": "Name",
                "purpose": "To name the crate"
            }
        ]
    }))
    .expect("canonical shape must decode");
    ask("2. canonical market shape", question.ask(&canonical));

    // ── 3. The output serializes to JSON (what the harness returns) ------------
    let out = question.ask(&canonical).unwrap();
    println!("== 3. serialized output ==");
    println!("{}", serde_json::to_string_pretty(&out).unwrap());
    println!();

    // ── 4. Lenient decoding: model emission variants still parse ----------------
    let string_options: QuestionInput = serde_json::from_value(serde_json::json!({
        "questions": [{
            "question": "Pick one?",
            "options": "[\"A\", \"B\"]"
        }]
    }))
    .expect("string-encoded options must decode");
    ask("4a. string-encoded options", question.ask(&string_options));

    let bare_strings: QuestionInput = serde_json::from_value(serde_json::json!({
        "questions": [{
            "question": "Which features?",
            "multiple": true,
            "options": ["Lint", "Format"]
        }]
    }))
    .expect("bare-string options with the `multiple` alias must decode");
    ask(
        "4b. bare-string options + `multiple` alias",
        question.ask(&bare_strings),
    );

    let header_only: QuestionInput = serde_json::from_value(serde_json::json!({
        "questions": [{"header": "Pick mode"}]
    }))
    .expect("header-only item must decode");
    ask("4c. header-only item", question.ask(&header_only));

    // ── 5. Validation errors ----------------------------------------------------
    ask(
        "5a. no questions",
        question.ask(&QuestionInput { questions: vec![] }),
    );

    ask(
        "5b. choice question without options",
        question.ask(
            &serde_json::from_value::<QuestionInput>(serde_json::json!({
                "questions": [{"question": "Pick some?", "multiSelect": true}]
            }))
            .unwrap(),
        ),
    );

    ask(
        "5c. option colliding with the reserved custom-answer label",
        question.ask(
            &serde_json::from_value::<QuestionInput>(serde_json::json!({
                "questions": [{
                    "question": "Pick one?",
                    "options": [
                        {"label": "Personalize your response"},
                        {"label": "B"}
                    ]
                }]
            }))
            .unwrap(),
        ),
    );

    let _ = QuestionType::Text; // keep the import honest for doc examples
}