use perspt_core::types::{CompiledPrompt, PromptEvidence, PromptIntent, PromptProvenance};
pub(crate) const VERIFIER_ANALYSIS_PREAMBLE: &str = "\
You are a Verifier agent. Analyze the following correction request and produce \
concise, structured guidance for the code fixer. Identify:\n\
1. Root cause of each failure\n\
2. Which specific functions/lines need changes\n\
3. Constraints that must be preserved\n\
Do NOT produce code — only analysis and guidance.\n\n";
pub fn compile(intent: PromptIntent, evidence: &PromptEvidence) -> CompiledPrompt {
let mut sources: Vec<String> = Vec::new();
let text = match intent {
PromptIntent::ArchitectExisting => {
sources.push("architect_existing_template".into());
if evidence.project_summary.is_some() {
sources.push("project_summary".into());
}
compile_architect(crate::prompts::ARCHITECT_EXISTING, evidence)
}
PromptIntent::ArchitectGreenfield => {
sources.push("architect_greenfield_template".into());
compile_architect(crate::prompts::ARCHITECT_GREENFIELD, evidence)
}
PromptIntent::ActuatorMultiOutput => {
sources.push("actuator_multi_output".into());
compile_actuator(evidence, true)
}
PromptIntent::ActuatorSingleOutput => {
sources.push("actuator_single_output".into());
compile_actuator(evidence, false)
}
PromptIntent::VerifierAnalysis => {
sources.push("verifier_check_template".into());
compile_verifier(evidence)
}
PromptIntent::CorrectionRetry => {
sources.push("correction_retry".into());
if evidence.verifier_diagnostics.is_some() {
sources.push("verifier_diagnostics".into());
}
if !evidence.existing_file_contents.is_empty() {
sources.push("existing_file_contents".into());
}
if evidence.plugin_correction_fragment.is_some() {
sources.push("plugin_correction_fragment".into());
}
compile_correction(evidence)
}
PromptIntent::BundleRetarget => {
sources.push("bundle_retarget_template".into());
compile_bundle_retarget(evidence)
}
PromptIntent::SpeculatorBasic => {
sources.push("speculator_basic".into());
let goal = evidence.node_goal.as_deref().unwrap_or("");
crate::prompts::SPECULATOR_BASIC.replace("{goal}", goal)
}
PromptIntent::SpeculatorLookahead => {
sources.push("speculator_lookahead".into());
compile_speculator_lookahead(evidence)
}
PromptIntent::SoloGenerate => {
sources.push("solo_generate_template".into());
let task = evidence.user_goal.as_deref().unwrap_or("");
crate::prompts::SOLO_GENERATE.replace("{task}", task)
}
PromptIntent::SoloCorrect => {
sources.push("solo_correction_template".into());
if evidence.verifier_diagnostics.is_some() {
sources.push("verifier_diagnostics".into());
}
compile_solo_correction(evidence)
}
PromptIntent::ProjectNameSuggest => {
sources.push("project_name_suggest".into());
let task = evidence.user_goal.as_deref().unwrap_or("");
crate::prompts::PROJECT_NAME_SUGGEST.replace("{task}", task)
}
PromptIntent::GoalCompletionCheck => {
sources.push("goal_completion_check".into());
if evidence.project_file_tree.is_some() {
sources.push("project_file_tree".into());
}
compile_goal_completion(evidence)
}
PromptIntent::PlanAmendment => {
sources.push("plan_amendment".into());
if evidence.error_feedback.is_some() {
sources.push("goal_gap".into());
}
compile_plan_amendment(evidence)
}
};
let plugin_fragment_source = evidence
.plugin_correction_fragment
.as_ref()
.map(|_| "owner_plugin".to_string());
CompiledPrompt {
text,
provenance: PromptProvenance {
intent,
plugin_fragment_source,
evidence_sources: sources,
compiled_at: epoch_seconds(),
},
}
}
fn compile_architect(template: &str, ev: &PromptEvidence) -> String {
let task = ev.user_goal.as_deref().unwrap_or("");
let project_context = ev.project_summary.as_deref().unwrap_or("");
let error_feedback = ev.error_feedback.as_deref().unwrap_or("");
let evidence_section = ev.evidence_section.as_deref().unwrap_or("");
let working_dir = ev.working_dir.as_deref().unwrap_or(".");
render_architect(
template,
task,
std::path::Path::new(working_dir),
project_context,
error_feedback,
evidence_section,
&ev.active_plugins,
)
}
fn compile_actuator(ev: &PromptEvidence, is_multi: bool) -> String {
let goal = ev.node_goal.as_deref().unwrap_or("");
let target_file = ev
.output_files
.first()
.map(|s| s.as_str())
.unwrap_or("main.py");
let allowed_output_paths = format!("{:?}", ev.output_files);
let context_files = format!("{:?}", ev.context_files);
let interface = ev.interface_signature.as_deref().unwrap_or("");
let invariants = ev.invariants.as_deref().unwrap_or("");
let forbidden = ev.forbidden_patterns.as_deref().unwrap_or("");
let working_dir = ev.working_dir.as_deref().unwrap_or(".");
let hints = ev.workspace_import_hints.as_deref().unwrap_or("");
render_actuator(
goal,
interface,
invariants,
forbidden,
working_dir,
&context_files,
target_file,
&allowed_output_paths,
hints,
is_multi,
)
}
fn compile_verifier(ev: &PromptEvidence) -> String {
let implementation = ev
.existing_file_contents
.first()
.map(|(_, content)| content.as_str())
.unwrap_or("");
let interface = ev.interface_signature.as_deref().unwrap_or("");
let invariants = ev.invariants.as_deref().unwrap_or("");
let forbidden = ev.forbidden_patterns.as_deref().unwrap_or("");
let weighted_tests = ev.weighted_tests.as_deref().unwrap_or("");
render_verifier(
interface,
invariants,
forbidden,
weighted_tests,
implementation,
)
}
fn compile_goal_completion(ev: &PromptEvidence) -> String {
let goal = ev.user_goal.as_deref().unwrap_or("");
let tree = ev
.project_file_tree
.as_deref()
.unwrap_or("(no file tree available)");
let mut files = String::new();
for (path, content) in &ev.existing_file_contents {
let body = if content.len() > 4000 {
&content[..4000]
} else {
content.as_str()
};
files.push_str(&format!("\n----- {path} -----\n{body}\n"));
}
if files.is_empty() {
files.push_str("(no key file contents captured)");
}
let tests = ev.build_test_output.as_deref().unwrap_or("(none)");
format!(
"You are a Verifier judging whether a coding task is COMPLETE.\n\n\
## User goal (intent)\n{goal}\n\n\
## Delivered workspace (file tree)\n{tree}\n\n\
## Key file contents\n{files}\n\n\
## Latest build/test output\n{tests}\n\n\
Decide whether the user's goal is FULLY achieved by what was delivered. \
Be strict: a stub, placeholder, or missing public API means NOT achieved. \
Respond with ONLY a JSON object, no prose:\n\
{{\n \"achieved\": true|false,\n \"missing\": [\"...\"],\n \"next_steps\": [\"...\"],\n \"rationale\": \"one line\"\n}}\n"
)
}
fn compile_plan_amendment(ev: &PromptEvidence) -> String {
let goal = ev.user_goal.as_deref().unwrap_or("");
let tree = ev
.project_file_tree
.as_deref()
.unwrap_or("(no file tree available)");
let gap = ev
.error_feedback
.as_deref()
.unwrap_or("(goal not yet achieved; infer the remaining work)");
let mut owned = String::new();
for (path, note) in &ev.existing_file_contents {
owned.push_str(&format!("- {path}: {note}\n"));
}
if owned.is_empty() {
owned.push_str("(none recorded)\n");
}
format!(
"You are the Architect AMENDING an existing plan to finish the user's goal.\n\n\
## User goal (intent)\n{goal}\n\n\
## What is still missing\n{gap}\n\n\
## Current workspace (file tree)\n{tree}\n\n\
## Already-owned files / existing task ids (do NOT claim these again)\n{owned}\n\
Produce ONLY NEW tasks needed to close the gap. Rules:\n\
- Each task's output_files MUST be files not already owned above.\n\
- A task may depend on an existing task id or another new task id.\n\
- A test-only task must depend on every source task whose files it tests.\n\
- Use distinct task ids not already used above.\n\n\
Respond with ONLY a JSON object, no prose:\n\
{{\n \"tasks\": [\n {{\"id\": \"...\", \"goal\": \"...\", \"output_files\": [\"...\"], \"context_files\": [\"...\"], \"dependencies\": [\"...\"], \"task_type\": \"code\"}}\n ]\n}}\n"
)
}
fn compile_correction(ev: &PromptEvidence) -> String {
let goal = ev.node_goal.as_deref().unwrap_or("");
let diagnostics = ev
.verifier_diagnostics
.as_deref()
.unwrap_or("No specific errors captured.");
let owner_plugin = ev.owner_plugin.as_deref().unwrap_or("");
let lang = ev
.existing_file_contents
.first()
.map(|(p, _)| p.as_str())
.and_then(|p| std::path::Path::new(p).extension())
.and_then(|e| e.to_str())
.map(|ext| match ext {
"py" => "python",
"rs" => "rust",
"ts" | "tsx" => "typescript",
"js" | "jsx" => "javascript",
"go" => "go",
"java" => "java",
"rb" => "ruby",
"c" | "h" => "c",
"cpp" | "cc" | "cxx" | "hpp" => "cpp",
"cs" => "csharp",
other => other,
})
.unwrap_or("text");
let mut prompt = format!(
"## Code Correction Required\n\n\
The code you generated has errors detected by the language toolchain.\n\
Your task is to fix ALL errors and return the complete corrected file(s).\n\n\
### Original Goal\n{}\n\n\
### Current Code (with errors)\n",
goal,
);
for (path, content) in &ev.existing_file_contents {
prompt.push_str(&format!(
"File: {}\n```{}\n{}\n```\n\n",
path, lang, content
));
}
if let Some(v_syn) = ev.energy_v_syn {
prompt.push_str(&format!(
"### Detected Errors (V_syn = {:.2})\n{}\n",
v_syn, diagnostics
));
} else {
prompt.push_str(&format!("### Detected Errors\n{}\n", diagnostics));
}
if let Some(ref directed) = ev.directed_corrections {
if !directed.trim().is_empty() {
prompt.push_str(&format!(
"\n### Directed Fixes (apply these specific changes)\n{}\n",
directed
));
}
}
if let Some(ref fragment) = ev.plugin_correction_fragment {
prompt.push_str(&format!("\n### Plugin Guidance\n{}\n", fragment));
}
let attempt_count = if !ev.previous_attempts.is_empty() {
ev.previous_attempts.len()
} else {
ev.previous_attempt_count
};
if attempt_count > 0 {
prompt.push_str(&format!(
"\n### Previous Correction Attempts: {}\n\
The previous attempts did not fully resolve the errors. \
Please try a different approach.\n",
attempt_count
));
}
if let Some(ref ctx) = ev.restriction_map_context {
if !ctx.is_empty() {
prompt.push_str(&format!("\n### Restriction Map Context\n\n{}\n", ctx));
}
}
if let Some(ref tree) = ev.project_file_tree {
if !tree.is_empty() {
prompt.push_str(&format!(
"\n### Current Project Tree\n\n```\n{}\n```\n",
tree
));
}
}
if let Some(ref output) = ev.build_test_output {
if !output.is_empty() {
prompt.push_str(&format!(
"\n### Build / Test Output\nThe following is the raw output from the build toolchain (e.g. `cargo check` / `cargo build`). \
Use this to identify missing dependencies, unresolved imports, or type errors:\n```\n{}\n```\n",
output
));
}
}
let target_paths = ev
.existing_file_contents
.iter()
.map(|(path, _)| path.as_str())
.collect::<Vec<_>>()
.join(", ");
let commands_example = match owner_plugin {
"rust" => "cargo add thiserror\ncargo add clap --features derive",
"python" => "uv add httpx\nuv add --dev pytest",
"javascript" => "npm install express\nnpm install --save-dev jest",
_ => "cargo add thiserror\nuv add httpx",
};
prompt.push_str(&format!(
r#"
### Fix Requirements
1. Fix ALL errors listed above - do not leave any unfixed
2. Maintain the original functionality and goal
3. Follow {} language conventions and idioms
4. Import any missing modules or dependencies
5. Return a JSON artifact bundle targeting these exact path(s): {}
6. If errors mention missing crates/packages (e.g. "can't find crate", "unresolved import" for an external dependency, "ModuleNotFoundError", "No module named"), list the required install commands
### Output Format
Return only this JSON object shape. Do not wrap it in markdown unless the provider requires a fenced json block.
```json
{{
"artifacts": [
{{
"operation": "write",
"path": "path/from/list/above",
"content": "complete corrected file contents"
}}
],
"commands": [
"optional dependency command, for example: {}"
]
}}
```
Use an empty commands array when no dependency command is needed.
"#,
lang,
if target_paths.is_empty() { "the original file(s)" } else { &target_paths },
commands_example.lines().next().unwrap_or("")
));
prompt
}
fn compile_bundle_retarget(ev: &PromptEvidence) -> String {
let expected = ev.output_files.join(", ");
let dropped = ev.rejected_bundle_summary.as_deref().unwrap_or("(unknown)");
let original_prompt = ev.node_goal.as_deref().unwrap_or("");
render_bundle_retarget(&expected, dropped, original_prompt)
}
fn compile_speculator_lookahead(ev: &PromptEvidence) -> String {
let node_id = ev
.context_files
.first()
.map(|s| s.as_str())
.unwrap_or("current");
let goal = ev.node_goal.as_deref().unwrap_or("");
let downstream = ev
.output_files
.iter()
.map(|s| format!("- {}", s))
.collect::<Vec<_>>()
.join("\n");
render_speculator_lookahead(node_id, goal, &downstream)
}
fn compile_solo_correction(ev: &PromptEvidence) -> String {
let task = ev.user_goal.as_deref().unwrap_or("");
let filename = ev.solo_file_path.as_deref().unwrap_or("script.py");
let current_code = ev
.existing_file_contents
.first()
.map(|(_, c)| c.as_str())
.unwrap_or("");
let error_list = ev
.verifier_diagnostics
.as_deref()
.unwrap_or("No specific errors captured, but energy is still too high.");
render_solo_correction(
task,
filename,
current_code,
"0.00", "0.00", "0.00", error_list,
)
}
const OPEN_BRACE: &str = "{";
const CLOSE_BRACE: &str = "}";
fn render_architect(
template: &str,
task: &str,
working_dir: &std::path::Path,
project_context: &str,
error_feedback: &str,
evidence_section: &str,
active_plugins: &[String],
) -> String {
let plugin_section = if active_plugins.is_empty() {
String::new()
} else {
format!(
"\n## Detected Toolchain\nActive language plugins: {}\nPlan verification-aware nodes that align with these plugins' build/test capabilities.\n",
active_plugins.join(", ")
)
};
let enriched_context = if plugin_section.is_empty() {
project_context.to_string()
} else {
format!("{}{}", project_context, plugin_section)
};
template
.replace("{task}", task)
.replace("{working_dir}", &working_dir.display().to_string())
.replace("{project_context}", &enriched_context)
.replace("{error_feedback}", error_feedback)
.replace("{evidence_section}", evidence_section)
.replace("{OPEN_BRACE}", OPEN_BRACE)
.replace("{CLOSE_BRACE}", CLOSE_BRACE)
}
#[allow(clippy::too_many_arguments)]
fn render_actuator(
goal: &str,
interface: &str,
invariants: &str,
forbidden: &str,
working_dir: &str,
context_files: &str,
target_file: &str,
allowed_output_paths: &str,
workspace_import_hints: &str,
is_multi_output: bool,
) -> String {
let output_format = if is_multi_output {
crate::prompts::ACTUATOR_MULTI_OUTPUT
.replace("{target_file}", target_file)
.replace("{OPEN_BRACE}", OPEN_BRACE)
.replace("{CLOSE_BRACE}", CLOSE_BRACE)
} else {
crate::prompts::ACTUATOR_SINGLE_OUTPUT.replace("{target_file}", target_file)
};
crate::prompts::ACTUATOR_CODING
.replace("{goal}", goal)
.replace("{interface}", interface)
.replace("{invariants}", invariants)
.replace("{forbidden}", forbidden)
.replace("{working_dir}", working_dir)
.replace("{context_files}", context_files)
.replace("{target_file}", target_file)
.replace("{allowed_output_paths}", allowed_output_paths)
.replace("{workspace_import_hints}", workspace_import_hints)
.replace("{output_format}", &output_format)
}
fn render_verifier(
interface: &str,
invariants: &str,
forbidden: &str,
weighted_tests: &str,
implementation: &str,
) -> String {
crate::prompts::VERIFIER_CHECK
.replace("{interface}", interface)
.replace("{invariants}", invariants)
.replace("{forbidden}", forbidden)
.replace("{weighted_tests}", weighted_tests)
.replace("{implementation}", implementation)
}
fn render_speculator_lookahead(node_id: &str, goal: &str, downstream: &str) -> String {
crate::prompts::SPECULATOR_LOOKAHEAD
.replace("{node_id}", node_id)
.replace("{goal}", goal)
.replace("{downstream}", downstream)
}
fn render_solo_correction(
task: &str,
filename: &str,
current_code: &str,
v_syn: &str,
v_log: &str,
v_boot: &str,
error_list: &str,
) -> String {
crate::prompts::SOLO_CORRECTION
.replace("{task}", task)
.replace("{filename}", filename)
.replace("{current_code}", current_code)
.replace("{v_syn}", v_syn)
.replace("{v_log}", v_log)
.replace("{v_boot}", v_boot)
.replace("{error_list}", error_list)
}
fn render_bundle_retarget(
expected_files: &str,
dropped_files: &str,
original_prompt: &str,
) -> String {
crate::prompts::BUNDLE_RETARGET
.replace("{expected_files}", expected_files)
.replace("{dropped_files}", dropped_files)
.replace("{original_prompt}", original_prompt)
}
fn epoch_seconds() -> i64 {
std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.unwrap_or_default()
.as_secs() as i64
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_compile_solo_generate() {
let ev = PromptEvidence {
user_goal: Some("Calculate fibonacci numbers".into()),
..Default::default()
};
let compiled = compile(PromptIntent::SoloGenerate, &ev);
assert!(compiled.text.contains("fibonacci"));
assert_eq!(compiled.provenance.intent, PromptIntent::SoloGenerate);
assert!(compiled
.provenance
.evidence_sources
.contains(&"solo_generate_template".to_string()));
}
#[test]
fn test_compile_correction_includes_directed_fixes() {
let ev = PromptEvidence {
node_goal: Some("Implement calculator".into()),
verifier_diagnostics: Some("error[E0432]: unresolved import".into()),
directed_corrections: Some("- [ImportGraph] add the missing `use` path\n".into()),
..Default::default()
};
let compiled = compile(PromptIntent::CorrectionRetry, &ev);
assert!(compiled.text.contains("Directed Fixes"));
assert!(compiled.text.contains("add the missing `use` path"));
}
#[test]
fn test_compile_project_name_suggest() {
let ev = PromptEvidence {
user_goal: Some("Build a REST API for user management".into()),
..Default::default()
};
let compiled = compile(PromptIntent::ProjectNameSuggest, &ev);
assert!(compiled.text.contains("REST API for user management"));
assert_eq!(compiled.provenance.intent, PromptIntent::ProjectNameSuggest);
}
#[test]
fn test_compile_correction_with_files() {
let ev = PromptEvidence {
node_goal: Some("Implement calculator".into()),
verifier_diagnostics: Some("error[E0308]: mismatched types".into()),
existing_file_contents: vec![(
"src/calc.rs".into(),
"fn add(a: i32) -> i32 { a }".into(),
)],
plugin_correction_fragment: Some("Use cargo check for Rust".into()),
..Default::default()
};
let compiled = compile(PromptIntent::CorrectionRetry, &ev);
assert!(compiled.text.contains("calculator"));
assert!(compiled.text.contains("mismatched types"));
assert!(compiled.text.contains("src/calc.rs"));
assert!(compiled.text.contains("Plugin Guidance"));
assert!(compiled
.provenance
.evidence_sources
.contains(&"verifier_diagnostics".to_string()));
assert!(compiled
.provenance
.evidence_sources
.contains(&"plugin_correction_fragment".to_string()));
}
#[test]
fn test_compile_bundle_retarget() {
let ev = PromptEvidence {
node_goal: Some("Build HTTP server".into()),
output_files: vec!["src/server.rs".into(), "src/main.rs".into()],
rejected_bundle_summary: Some("config.json, README.md".into()),
..Default::default()
};
let compiled = compile(PromptIntent::BundleRetarget, &ev);
assert!(compiled.text.contains("src/server.rs"));
assert!(compiled.text.contains("config.json"));
assert!(compiled.text.contains("REJECTED"));
}
#[test]
fn test_compile_speculator_basic() {
let ev = PromptEvidence {
node_goal: Some("Parse JSON config".into()),
..Default::default()
};
let compiled = compile(PromptIntent::SpeculatorBasic, &ev);
assert!(compiled.text.contains("Parse JSON config"));
}
#[test]
fn test_compile_architect_existing() {
let ev = PromptEvidence {
user_goal: Some("Add logging module".into()),
project_summary: Some("Rust workspace with 3 crates".into()),
working_dir: Some("/tmp/project".into()),
active_plugins: vec!["rust".into()],
..Default::default()
};
let compiled = compile(PromptIntent::ArchitectExisting, &ev);
assert!(compiled.text.contains("logging module"));
assert!(compiled
.provenance
.evidence_sources
.contains(&"project_summary".to_string()));
}
#[test]
fn test_compile_actuator_multi() {
let ev = PromptEvidence {
node_goal: Some("Implement auth module".into()),
output_files: vec!["src/auth.rs".into(), "tests/test_auth.rs".into()],
..Default::default()
};
let compiled = compile(PromptIntent::ActuatorMultiOutput, &ev);
assert!(compiled.text.contains("auth module"));
assert!(compiled.text.contains("Multi-Artifact Bundle"));
}
#[test]
fn test_compile_actuator_single() {
let ev = PromptEvidence {
node_goal: Some("Implement utils".into()),
output_files: vec!["src/utils.py".into()],
..Default::default()
};
let compiled = compile(PromptIntent::ActuatorSingleOutput, &ev);
assert!(compiled.text.contains("utils"));
assert!(!compiled.text.contains("Multi-Artifact Bundle"));
}
#[test]
fn test_compile_solo_correction() {
let ev = PromptEvidence {
user_goal: Some("Sort a list".into()),
solo_file_path: Some("sort_list.py".into()),
existing_file_contents: vec![("sort_list.py".into(), "def sort(l): pass".into())],
verifier_diagnostics: Some("NameError: name 'x' is not defined".into()),
..Default::default()
};
let compiled = compile(PromptIntent::SoloCorrect, &ev);
assert!(compiled.text.contains("sort_list.py"));
assert!(compiled.text.contains("NameError"));
}
#[test]
fn test_provenance_records_timestamp() {
let ev = PromptEvidence::default();
let compiled = compile(PromptIntent::SpeculatorBasic, &ev);
assert!(compiled.provenance.compiled_at > 0);
}
#[test]
fn test_correction_with_previous_attempts() {
let ev = PromptEvidence {
node_goal: Some("Fix parser".into()),
previous_attempts: vec![perspt_core::types::CorrectionAttemptRecord {
attempt: 1,
parse_state: perspt_core::types::ParseResultState::NoStructuredPayload,
retry_classification: None,
response_fingerprint: "abc123".into(),
response_length: 100,
energy_after: None,
accepted: false,
rejection_reason: Some("Failed to parse".into()),
created_at: 0,
}],
..Default::default()
};
let compiled = compile(PromptIntent::CorrectionRetry, &ev);
assert!(compiled.text.contains("Previous Correction Attempts: 1"));
}
}