vv-agent 0.4.8

VectorVein agent runtime, SDK, CLI, tools, and workspace backends
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

use std::panic::{catch_unwind, AssertUnwindSafe};

use crate::memory::artifacts::{
    compact_tool_results, render_persisted_artifacts_section, ToolResultArtifactConfig,
};
use crate::memory::post_compact_restore::{restore_key_files, PostCompactRestoreConfig};
use crate::memory::summary::LocalSummary;
use crate::types::{Message, MessageRole};

use super::helpers::{extract_original_user_request, normalize_summary_output};
use super::normalization;
use super::prompts;
use super::MemoryManager;

impl MemoryManager {
    pub(super) fn compact_large_tool_results(
        &self,
        messages: &[Message],
        cycle_index: Option<u32>,
    ) -> (Vec<Message>, bool) {
        let (compacted, _artifacts, changed) = compact_tool_results(
            messages,
            &ToolResultArtifactConfig {
                workspace: self.config.workspace.clone(),
                artifact_dir: self.config.tool_result_artifact_dir.clone(),
                compact_threshold: self.config.tool_result_compact_threshold,
                keep_last: self.config.tool_result_keep_last,
                excerpt_head: self.config.tool_result_excerpt_head,
                excerpt_tail: self.config.tool_result_excerpt_tail,
            },
            cycle_index,
        );
        (compacted, changed)
    }

    pub(super) fn compress_memory(
        &self,
        messages: &[Message],
        cycle_index: Option<u32>,
    ) -> (Vec<Message>, bool) {
        let messages = self.strip_session_memory_context(messages);
        if messages.len() <= 2 {
            return (messages, false);
        }
        let system_message = messages
            .iter()
            .find(|message| message.role == MessageRole::System)
            .cloned();
        let (messages_for_summary, _normalized) = self.normalize_compaction_messages(&messages);
        let (messages_for_summary, artifacts, _compacted_tools) = compact_tool_results(
            &messages_for_summary,
            &ToolResultArtifactConfig {
                workspace: self.config.workspace.clone(),
                artifact_dir: self.config.tool_result_artifact_dir.clone(),
                compact_threshold: self.config.tool_result_compact_threshold,
                keep_last: self.config.tool_result_keep_last,
                excerpt_head: self.config.tool_result_excerpt_head,
                excerpt_tail: self.config.tool_result_excerpt_tail,
            },
            cycle_index,
        );
        let original_request = extract_original_user_request(&messages).unwrap_or_default();
        let summary_prompt = self.build_compress_memory_prompt(&messages_for_summary);
        let mut compressed_memory = self.generate_summary(&summary_prompt, &messages_for_summary);
        if let Ok(summary_data) = serde_json::from_str(&compressed_memory) {
            let restored_context = restore_key_files(
                &summary_data,
                self.config.workspace.as_deref(),
                &PostCompactRestoreConfig {
                    token_model: self.config.model.clone(),
                    ..PostCompactRestoreConfig::default()
                },
            );
            if !restored_context.is_empty() {
                compressed_memory.push_str("\n\n");
                compressed_memory.push_str(&restored_context);
            }
        }
        if let Some(artifact_section) = render_persisted_artifacts_section(&artifacts) {
            compressed_memory.push_str("\n\n");
            compressed_memory.push_str(&artifact_section);
        }

        let mut compacted = Vec::new();
        if let Some(system_message) = system_message {
            compacted.push(system_message);
        }
        compacted.push(Message::user(format!(
            "<Original User Request>\n{original_request}\n</Original User Request>\n\n<Compressed Agent Memory>\n{compressed_memory}\n</Compressed Agent Memory>"
        )));
        (compacted, true)
    }

    fn build_compress_memory_prompt(&self, messages: &[Message]) -> String {
        prompts::build_compress_memory_prompt(
            &self.config.language,
            self.config.summary_event_limit,
            messages,
        )
    }

    fn generate_summary(&self, prompt: &str, messages: &[Message]) -> String {
        if let Some(callback) = &self.config.summary_callback {
            let callback_result = catch_unwind(AssertUnwindSafe(|| {
                callback(
                    prompt,
                    self.config.summary_backend.as_deref(),
                    self.config.summary_model.as_deref(),
                )
            }));
            if let Ok(Some(summary)) = callback_result {
                let normalized = normalize_summary_output(&summary);
                if !normalized.trim().is_empty() {
                    return normalized;
                }
            }
        }
        LocalSummary::from_messages(messages, self.config.summary_event_limit).to_json_string()
    }

    fn normalize_compaction_messages(&self, messages: &[Message]) -> (Vec<Message>, bool) {
        normalization::normalize_compaction_messages(
            messages,
            self.config.tool_calls_keep_last,
            self.config.assistant_no_tool_keep_last,
        )
    }
}