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memory-search: move hook logic to library module, eliminate subprocesses

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Move the hook logic from the memory-search binary into a library module
(poc_memory::memory_search) so poc-hook can call it as a direct function
instead of spawning a subprocess with piped stdin.

Also convert the node render call in surface_agent_cycle from
Command::new("poc-memory render") to a direct crate::cli::node::render_node()
call, eliminating another subprocess.

The memory-search binary remains as a thin CLI wrapper for debugging
(--hook reads from stdin) and inspection (show_seen).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
ProofOfConcept 2026-03-24 12:27:54 -04:00
parent 78c93dde4d
commit a48cbe51a8
4 changed files with 377 additions and 490 deletions
Download patch file Download diff file Expand all files Collapse all files

477
poc-memory/src/bin/memory-search.rs
View file

@ -1,450 +1,28 @@
// memory-search: combined hook for session context loading + ambient memory retrieval
// memory-search CLI — thin wrapper around poc_memory::memory_search
//
// Modes:
// --hook Run as Claude Code UserPromptSubmit hook (reads stdin, injects into conversation)
// --debug Replay last stashed input, dump every stage to stdout
// --seen Show the seen set for current session
// (default) No-op (future: manual search modes)
// --hook: run hook logic (for debugging; poc-hook calls the library directly)
// no args: show seen set for current session
use clap::Parser;
use poc_memory::search::{self, AlgoStage};
use std::collections::{BTreeMap, HashSet};
use std::fs;
use std::io::{self, Read, Write};
use std::path::{Path, PathBuf};
use std::process::Command;
use std::time::{Duration, SystemTime, UNIX_EPOCH};
const STASH_PATH: &str = "/tmp/claude-memory-search/last-input.json";
#[derive(Parser)]
#[command(name = "memory-search")]
struct Args {
/// Run as Claude Code hook (reads stdin, outputs for injection)
/// Run hook logic (reads JSON from stdin or stash file)
#[arg(long)]
hook: bool,
/// Debug mode: replay last stashed input, dump every stage
#[arg(short, long)]
debug: bool,
/// Show session state: seen set info
#[arg(long)]
seen: bool,
/// Search query (bypasses stashed input, uses this as the prompt)
#[arg(long, short)]
query: Option<String>,
/// Algorithm pipeline stages
pipeline: Vec<String>,
}
const STASH_PATH: &str = "/tmp/claude-memory-search/last-input.json";
fn now_secs() -> u64 {
SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs()
}
/// Max bytes per context chunk (hook output limit is ~10K chars)
const CHUNK_SIZE: usize = 9000;
struct Session {
session_id: String,
transcript_path: String,
state_dir: PathBuf,
}
impl Session {
fn load(hook: bool) -> Option<Self> {
let state_dir = PathBuf::from("/tmp/claude-memory-search");
fs::create_dir_all(&state_dir).ok();
let input = if hook {
let mut buf = String::new();
io::stdin().read_to_string(&mut buf).unwrap_or_default();
fs::write(STASH_PATH, &buf).ok();
buf
} else {
fs::read_to_string(STASH_PATH).ok()?
};
let json: serde_json::Value = serde_json::from_str(&input).ok()?;
let session_id = json["session_id"].as_str().unwrap_or("").to_string();
if session_id.is_empty() { return None; }
let transcript_path = json["transcript_path"].as_str().unwrap_or("").to_string();
Some(Session { session_id, transcript_path, state_dir })
}
fn path(&self, prefix: &str) -> PathBuf {
self.state_dir.join(format!("{}-{}", prefix, self.session_id))
}
}
fn main() {
// Daemon agent calls set POC_AGENT=1 — skip memory search.
if std::env::var("POC_AGENT").is_ok() {
return;
}
let args = Args::parse();
if args.seen {
show_seen();
return;
}
// --query mode: skip all hook/context machinery, just search
if let Some(ref query_str) = args.query {
run_query_mode(query_str, &args);
return;
}
let Some(session) = Session::load(args.hook) else { return };
let debug = args.debug || !args.hook;
let is_compaction = poc_memory::transcript::detect_new_compaction(
&session.state_dir, &session.session_id, &session.transcript_path,
);
let cookie_path = session.path("cookie");
let is_first = !cookie_path.exists();
if is_first || is_compaction {
// Rotate seen set on compaction, clear on first
if is_compaction {
fs::rename(&session.path("seen"), &session.path("seen-prev")).ok();
} else {
fs::remove_file(&session.path("seen")).ok();
fs::remove_file(&session.path("seen-prev")).ok();
}
fs::remove_file(&session.path("returned")).ok();
}
if debug {
println!("[memory-search] session={} is_first={} is_compaction={}",
session.session_id, is_first, is_compaction);
}
if is_first || is_compaction {
if is_first {
fs::write(&cookie_path, generate_cookie()).ok();
}
if debug { println!("[memory-search] loading full context"); }
if let Ok(output) = Command::new("poc-memory").args(["admin", "load-context"]).output() {
if output.status.success() {
let ctx = String::from_utf8_lossy(&output.stdout).to_string();
if !ctx.trim().is_empty() {
let mut ctx_seen = load_seen(&session.state_dir, &session.session_id);
for line in ctx.lines() {
if line.starts_with("--- ") && line.ends_with(" ---") {
let inner = &line[4..line.len() - 4];
if let Some(paren) = inner.rfind(" (") {
let key = inner[..paren].trim();
mark_seen(&session.state_dir, &session.session_id, key, &mut ctx_seen);
}
}
}
let chunks = chunk_context(&ctx, CHUNK_SIZE);
if debug {
println!("[memory-search] context: {} bytes, {} chunks",
ctx.len(), chunks.len());
}
if let Some(first) = chunks.first() {
if args.hook { print!("{}", first); }
}
save_pending_chunks(&session.state_dir, &session.session_id, &chunks[1..]);
}
}
}
} else if let Some(chunk) = pop_pending_chunk(&session.state_dir, &session.session_id) {
if debug {
println!("[memory-search] drip-feeding pending chunk: {} bytes", chunk.len());
}
if args.hook { print!("{}", chunk); }
}
// Surface agent: consume previous result, inject memories, spawn next run
if args.hook {
surface_agent_cycle(&session);
}
cleanup_stale_files(&session.state_dir, Duration::from_secs(86400));
}
/// Direct query mode: search for a term without hook/stash machinery.
fn run_query_mode(query: &str, args: &Args) {
let store = match poc_memory::store::Store::load() {
Ok(s) => s,
Err(e) => { eprintln!("failed to load store: {}", e); return; }
};
// Build terms from the query string
let mut terms: BTreeMap<String, f64> = BTreeMap::new();
let prompt_terms = search::extract_query_terms(query, 8);
for word in prompt_terms.split_whitespace() {
terms.entry(word.to_lowercase()).or_insert(1.0);
}
// Also check for exact node key match (the query itself, lowercased)
let query_lower = query.to_lowercase();
for (key, node) in &store.nodes {
if node.deleted { continue; }
if key.to_lowercase() == query_lower {
terms.insert(query_lower.clone(), 10.0);
break;
}
}
println!("[query] terms: {:?}", terms);
if terms.is_empty() {
println!("[query] no terms extracted");
return;
}
let graph = poc_memory::graph::build_graph_fast(&store);
let (seeds, direct_hits) = search::match_seeds(&terms, &store);
println!("[query] {} seeds", seeds.len());
let mut sorted = seeds.clone();
sorted.sort_by(|a, b| b.1.total_cmp(&a.1));
for (key, score) in sorted.iter().take(20) {
let marker = if direct_hits.contains(key) { "→" } else { " " };
println!(" {} {:.4} {}", marker, score, key);
}
let pipeline: Vec<AlgoStage> = if args.pipeline.is_empty() {
vec![AlgoStage::parse("spread").unwrap()]
} else {
args.pipeline.iter()
.filter_map(|a| AlgoStage::parse(a).ok())
.collect()
};
let max_results = 50;
let results = search::run_pipeline(&pipeline, seeds, &graph, &store, true, max_results);
println!("\n[query] top {} results:", results.len().min(25));
for (i, (key, score)) in results.iter().take(25).enumerate() {
let marker = if direct_hits.contains(key) { "→" } else { " " };
println!(" {:2}. {} [{:.4}] {}", i + 1, marker, score, key);
}
}
/// Split context output into chunks of approximately `max_bytes`, breaking
/// at section boundaries ("--- KEY (group) ---" lines).
fn chunk_context(ctx: &str, max_bytes: usize) -> Vec<String> {
// Split into sections at group boundaries, then merge small adjacent
// sections into chunks up to max_bytes.
let mut sections: Vec<String> = Vec::new();
let mut current = String::new();
for line in ctx.lines() {
// Group headers start new sections
if line.starts_with("--- ") && line.ends_with(" ---") && !current.is_empty() {
sections.push(std::mem::take(&mut current));
}
if !current.is_empty() {
current.push('\n');
}
current.push_str(line);
}
if !current.is_empty() {
sections.push(current);
}
// Merge small sections into chunks, respecting max_bytes
let mut chunks: Vec<String> = Vec::new();
let mut chunk = String::new();
for section in sections {
if !chunk.is_empty() && chunk.len() + section.len() + 1 > max_bytes {
chunks.push(std::mem::take(&mut chunk));
}
if !chunk.is_empty() {
chunk.push('\n');
}
chunk.push_str(&section);
}
if !chunk.is_empty() {
chunks.push(chunk);
}
chunks
}
/// Save remaining chunks to disk for drip-feeding on subsequent hook calls.
fn save_pending_chunks(dir: &Path, session_id: &str, chunks: &[String]) {
let chunks_dir = dir.join(format!("chunks-{}", session_id));
// Clear any old chunks
let _ = fs::remove_dir_all(&chunks_dir);
if chunks.is_empty() { return; }
fs::create_dir_all(&chunks_dir).ok();
for (i, chunk) in chunks.iter().enumerate() {
let path = chunks_dir.join(format!("{:04}", i));
fs::write(path, chunk).ok();
}
}
/// Pop the next pending chunk (lowest numbered file). Returns None if no chunks remain.
fn pop_pending_chunk(dir: &Path, session_id: &str) -> Option<String> {
let chunks_dir = dir.join(format!("chunks-{}", session_id));
if !chunks_dir.exists() { return None; }
let mut entries: Vec<_> = fs::read_dir(&chunks_dir).ok()?
.flatten()
.filter(|e| e.file_type().map(|t| t.is_file()).unwrap_or(false))
.collect();
entries.sort_by_key(|e| e.file_name());
let first = entries.first()?;
let content = fs::read_to_string(first.path()).ok()?;
fs::remove_file(first.path()).ok();
// Clean up directory if empty
if fs::read_dir(&chunks_dir).ok().map(|mut d| d.next().is_none()).unwrap_or(true) {
fs::remove_dir(&chunks_dir).ok();
}
Some(content)
}
fn generate_cookie() -> String {
uuid::Uuid::new_v4().as_simple().to_string()[..12].to_string()
}
/// Parse a seen-file line: "TIMESTAMP\tKEY" or legacy "KEY"
fn parse_seen_line(line: &str) -> &str {
line.split_once('\t').map(|(_, key)| key).unwrap_or(line)
}
fn load_seen(dir: &Path, session_id: &str) -> HashSet<String> {
let path = dir.join(format!("seen-{}", session_id));
if path.exists() {
let set: HashSet<String> = fs::read_to_string(&path)
.unwrap_or_default()
.lines()
.filter(|s| !s.is_empty())
.map(|s| parse_seen_line(s).to_string())
.collect();
set
} else {
HashSet::new()
}
}
fn mark_seen(dir: &Path, session_id: &str, key: &str, seen: &mut HashSet<String>) {
if !seen.insert(key.to_string()) { return; }
let path = dir.join(format!("seen-{}", session_id));
if let Ok(mut f) = fs::OpenOptions::new().create(true).append(true).open(path) {
let ts = chrono::Local::now().format("%Y-%m-%dT%H:%M:%S");
writeln!(f, "{}\t{}", ts, key).ok();
}
}
/// Surface agent lifecycle: check if previous agent finished, consume results,
/// render and inject unseen memories, spawn next agent run.
fn surface_agent_cycle(session: &Session) {
let result_path = session.state_dir.join(format!("surface-result-{}", session.session_id));
let pid_path = session.state_dir.join(format!("surface-pid-{}", session.session_id));
let surface_timeout = poc_memory::config::get()
.surface_timeout_secs
.unwrap_or(120) as u64;
// Check if previous agent is done
let agent_done = match fs::read_to_string(&pid_path) {
Ok(content) => {
let parts: Vec<&str> = content.split('\t').collect();
let pid: u32 = parts.first().and_then(|s| s.trim().parse().ok()).unwrap_or(0);
let start_ts: u64 = parts.get(1).and_then(|s| s.trim().parse().ok()).unwrap_or(0);
if pid == 0 { true }
else {
let alive = unsafe { libc::kill(pid as i32, 0) == 0 };
if !alive { true }
else if now_secs().saturating_sub(start_ts) > surface_timeout {
unsafe { libc::kill(pid as i32, libc::SIGTERM); }
true
} else { false }
}
}
Err(_) => true,
};
if !agent_done { return; }
// Consume result
if let Ok(result) = fs::read_to_string(&result_path) {
if !result.trim().is_empty() {
let tail_lines: Vec<&str> = result.lines().rev()
.filter(|l| !l.trim().is_empty()).take(8).collect();
let has_new = tail_lines.iter().any(|l| l.starts_with("NEW RELEVANT MEMORIES:"));
let has_none = tail_lines.iter().any(|l| l.starts_with("NO NEW RELEVANT MEMORIES"));
if has_new {
let after_marker = result.rsplit_once("NEW RELEVANT MEMORIES:")
.map(|(_, rest)| rest).unwrap_or("");
let keys: Vec<String> = after_marker.lines()
.map(|l| l.trim().trim_start_matches("- ").trim().to_string())
.filter(|l| !l.is_empty()).collect();
// Render and inject unseen keys
let mut seen = load_seen(&session.state_dir, &session.session_id);
let seen_path = session.path("seen");
for key in &keys {
if !seen.insert(key.clone()) { continue; }
if let Ok(output) = Command::new("poc-memory").args(["render", key]).output() {
if output.status.success() {
let content = String::from_utf8_lossy(&output.stdout);
if !content.trim().is_empty() {
println!("--- {} (surfaced) ---", key);
print!("{}", content);
if let Ok(mut f) = fs::OpenOptions::new()
.create(true).append(true).open(&seen_path) {
let ts = chrono::Local::now().format("%Y-%m-%dT%H:%M:%S");
writeln!(f, "{}\t{}", ts, key).ok();
}
}
}
}
}
} else if !has_none {
let log_dir = poc_memory::store::memory_dir().join("logs");
fs::create_dir_all(&log_dir).ok();
let log_path = log_dir.join("surface-errors.log");
if let Ok(mut f) = fs::OpenOptions::new().create(true).append(true).open(&log_path) {
let ts = chrono::Local::now().format("%Y-%m-%dT%H:%M:%S");
let last = tail_lines.first().unwrap_or(&"");
let _ = writeln!(f, "[{}] unexpected surface output: {}", ts, last);
}
}
}
}
fs::remove_file(&result_path).ok();
fs::remove_file(&pid_path).ok();
// Spawn next surface agent
if let Ok(output_file) = fs::File::create(&result_path) {
if let Ok(child) = Command::new("poc-memory")
.args(["agent", "run", "surface", "--count", "1", "--local"])
.env("POC_SESSION_ID", &session.session_id)
.stdout(output_file)
.stderr(std::process::Stdio::null())
.spawn()
{
let pid = child.id();
let ts = now_secs();
if let Ok(mut f) = fs::File::create(&pid_path) {
write!(f, "{}\t{}", pid, ts).ok();
}
}
}
}
fn show_seen() {
let Some(session) = Session::load(false) else {
let input = match fs::read_to_string(STASH_PATH) {
Ok(s) => s,
Err(_) => { eprintln!("No session state available"); return; }
};
let Some(session) = poc_memory::memory_search::Session::from_json(&input) else {
eprintln!("No session state available");
return;
};
@ -484,19 +62,26 @@ fn show_seen() {
}
}
fn cleanup_stale_files(dir: &Path, max_age: Duration) {
let entries = match fs::read_dir(dir) {
Ok(e) => e,
Err(_) => return,
fn main() {
let args = Args::parse();
if args.hook {
// Read from stdin if piped, otherwise from stash
let input = {
let mut buf = String::new();
io::stdin().read_to_string(&mut buf).ok();
if buf.trim().is_empty() {
fs::read_to_string(STASH_PATH).unwrap_or_default()
} else {
let _ = fs::create_dir_all("/tmp/claude-memory-search");
let _ = fs::write(STASH_PATH, &buf);
buf
}
};
let cutoff = SystemTime::now() - max_age;
for entry in entries.flatten() {
if let Ok(meta) = entry.metadata() {
if let Ok(modified) = meta.modified() {
if modified < cutoff {
fs::remove_file(entry.path()).ok();
}
}
}
let output = poc_memory::memory_search::run_hook(&input);
print!("{}", output);
} else {
show_seen()
}
}

46
poc-memory/src/bin/poc-hook.rs
View file

@ -163,7 +163,6 @@ Keep it narrative, not a task log."
}
}
fn main() {
let mut input = String::new();
io::stdin().read_to_string(&mut input).ok();
@ -190,60 +189,19 @@ fn main() {
"UserPromptSubmit" => {
signal_user();
check_notifications();
// Run memory-search, passing through the hook input it needs
if let Ok(output) = Command::new("memory-search")
.arg("--hook")
.stdin(std::process::Stdio::piped())
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::null())
.spawn()
.and_then(|mut child| {
if let Some(ref mut stdin) = child.stdin {
use std::io::Write;
let _ = stdin.write_all(input.as_bytes());
}
child.wait_with_output()
})
{
let text = String::from_utf8_lossy(&output.stdout);
if !text.is_empty() {
print!("{text}");
}
}
print!("{}", poc_memory::memory_search::run_hook(&input));
if let Some(ref t) = transcript {
check_context(t, false);
maybe_trigger_observation(t);
}
}
"PostToolUse" => {
// Drip-feed pending context chunks from initial load
if let Ok(output) = Command::new("memory-search")
.arg("--hook")
.stdin(std::process::Stdio::piped())
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::null())
.spawn()
.and_then(|mut child| {
if let Some(ref mut stdin) = child.stdin {
use std::io::Write;
let _ = stdin.write_all(input.as_bytes());
}
child.wait_with_output()
})
{
let text = String::from_utf8_lossy(&output.stdout);
if !text.is_empty() {
print!("{text}");
}
}
print!("{}", poc_memory::memory_search::run_hook(&input));
if let Some(ref t) = transcript {
check_context(t, true);
}
}
"Stop" => {
let stop_hook_active = hook["stop_hook_active"].as_bool().unwrap_or(false);

2
poc-memory/src/lib.rs
View file

@ -34,6 +34,8 @@ pub use agents::{
enrich, digest, daemon,
};
pub mod memory_search;
pub mod memory_capnp {
include!(concat!(env!("OUT_DIR"), "/schema/memory_capnp.rs"));
}

342
poc-memory/src/memory_search.rs Normal file
View file

@ -0,0 +1,342 @@
// memory-search: context loading + ambient memory retrieval
//
// Core hook logic lives here as a library module so poc-hook can call
// it directly (no subprocess). The memory-search binary is a thin CLI
// wrapper with --hook for debugging and show_seen for inspection.
use std::collections::HashSet;
use std::fs;
use std::fs::File;
use std::io::Write;
use std::path::{Path, PathBuf};
use std::process::Command;
use std::time::{Duration, SystemTime, UNIX_EPOCH};
fn now_secs() -> u64 {
SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs()
}
/// Max bytes per context chunk (hook output limit is ~10K chars)
const CHUNK_SIZE: usize = 9000;
pub struct Session {
pub session_id: String,
pub transcript_path: String,
pub hook_event: String,
pub state_dir: PathBuf,
}
impl Session {
pub fn from_json(input: &str) -> Option<Self> {
let state_dir = PathBuf::from("/tmp/claude-memory-search");
fs::create_dir_all(&state_dir).ok();
let json: serde_json::Value = serde_json::from_str(input).ok()?;
let session_id = json["session_id"].as_str().unwrap_or("").to_string();
if session_id.is_empty() { return None; }
let transcript_path = json["transcript_path"].as_str().unwrap_or("").to_string();
let hook_event = json["hook_event_name"].as_str().unwrap_or("").to_string();
Some(Session { session_id, transcript_path, hook_event, state_dir })
}
pub fn path(&self, prefix: &str) -> PathBuf {
self.state_dir.join(format!("{}-{}", prefix, self.session_id))
}
}
/// Run the hook logic on parsed JSON input. Returns output to inject.
pub fn run_hook(input: &str) -> String {
// Daemon agent calls set POC_AGENT=1 — skip memory search.
if std::env::var("POC_AGENT").is_ok() { return String::new(); }
let Some(session) = Session::from_json(input) else { return String::new() };
hook(&session)
}
/// Split context output into chunks of approximately `max_bytes`, breaking
/// at section boundaries ("--- KEY (group) ---" lines).
fn chunk_context(ctx: &str, max_bytes: usize) -> Vec<String> {
let mut sections: Vec<String> = Vec::new();
let mut current = String::new();
for line in ctx.lines() {
if line.starts_with("--- ") && line.ends_with(" ---") && !current.is_empty() {
sections.push(std::mem::take(&mut current));
}
if !current.is_empty() {
current.push('\n');
}
current.push_str(line);
}
if !current.is_empty() {
sections.push(current);
}
let mut chunks: Vec<String> = Vec::new();
let mut chunk = String::new();
for section in sections {
if !chunk.is_empty() && chunk.len() + section.len() + 1 > max_bytes {
chunks.push(std::mem::take(&mut chunk));
}
if !chunk.is_empty() {
chunk.push('\n');
}
chunk.push_str(&section);
}
if !chunk.is_empty() {
chunks.push(chunk);
}
chunks
}
fn save_pending_chunks(dir: &Path, session_id: &str, chunks: &[String]) {
let chunks_dir = dir.join(format!("chunks-{}", session_id));
let _ = fs::remove_dir_all(&chunks_dir);
if chunks.is_empty() { return; }
fs::create_dir_all(&chunks_dir).ok();
for (i, chunk) in chunks.iter().enumerate() {
let path = chunks_dir.join(format!("{:04}", i));
fs::write(path, chunk).ok();
}
}
fn pop_pending_chunk(dir: &Path, session_id: &str) -> Option<String> {
let chunks_dir = dir.join(format!("chunks-{}", session_id));
if !chunks_dir.exists() { return None; }
let mut entries: Vec<_> = fs::read_dir(&chunks_dir).ok()?
.flatten()
.filter(|e| e.file_type().map(|t| t.is_file()).unwrap_or(false))
.collect();
entries.sort_by_key(|e| e.file_name());
let first = entries.first()?;
let content = fs::read_to_string(first.path()).ok()?;
fs::remove_file(first.path()).ok();
if fs::read_dir(&chunks_dir).ok().map(|mut d| d.next().is_none()).unwrap_or(true) {
fs::remove_dir(&chunks_dir).ok();
}
Some(content)
}
fn generate_cookie() -> String {
uuid::Uuid::new_v4().as_simple().to_string()[..12].to_string()
}
fn parse_seen_line(line: &str) -> &str {
line.split_once('\t').map(|(_, key)| key).unwrap_or(line)
}
fn load_seen(dir: &Path, session_id: &str) -> HashSet<String> {
let path = dir.join(format!("seen-{}", session_id));
if path.exists() {
fs::read_to_string(&path)
.unwrap_or_default()
.lines()
.filter(|s| !s.is_empty())
.map(|s| parse_seen_line(s).to_string())
.collect()
} else {
HashSet::new()
}
}
fn mark_seen(dir: &Path, session_id: &str, key: &str, seen: &mut HashSet<String>) {
if !seen.insert(key.to_string()) { return; }
let path = dir.join(format!("seen-{}", session_id));
if let Ok(mut f) = fs::OpenOptions::new().create(true).append(true).open(path) {
let ts = chrono::Local::now().format("%Y-%m-%dT%H:%M:%S");
writeln!(f, "{}\t{}", ts, key).ok();
}
}
fn surface_agent_cycle(session: &Session, out: &mut String, log_f: &mut File) {
let result_path = session.state_dir.join(format!("surface-result-{}", session.session_id));
let pid_path = session.state_dir.join(format!("surface-pid-{}", session.session_id));
let surface_timeout = crate::config::get()
.surface_timeout_secs
.unwrap_or(120) as u64;
let agent_done = match fs::read_to_string(&pid_path) {
Ok(content) => {
let parts: Vec<&str> = content.split('\t').collect();
let pid: u32 = parts.first().and_then(|s| s.trim().parse().ok()).unwrap_or(0);
let start_ts: u64 = parts.get(1).and_then(|s| s.trim().parse().ok()).unwrap_or(0);
if pid == 0 { true }
else {
let alive = unsafe { libc::kill(pid as i32, 0) == 0 };
if !alive { true }
else if now_secs().saturating_sub(start_ts) > surface_timeout {
unsafe { libc::kill(pid as i32, libc::SIGTERM); }
true
} else { false }
}
}
Err(_) => true,
};
let _ = writeln!(log_f, "agent_done {agent_done}");
if !agent_done { return; }
if let Ok(result) = fs::read_to_string(&result_path) {
if !result.trim().is_empty() {
let tail_lines: Vec<&str> = result.lines().rev()
.filter(|l| !l.trim().is_empty()).take(8).collect();
let has_new = tail_lines.iter().any(|l| l.starts_with("NEW RELEVANT MEMORIES:"));
let has_none = tail_lines.iter().any(|l| l.starts_with("NO NEW RELEVANT MEMORIES"));
let _ = writeln!(log_f, "has_new {has_new} has_none {has_none}");
if has_new {
let after_marker = result.rsplit_once("NEW RELEVANT MEMORIES:")
.map(|(_, rest)| rest).unwrap_or("");
let keys: Vec<String> = after_marker.lines()
.map(|l| l.trim().trim_start_matches("- ").trim().to_string())
.filter(|l| !l.is_empty() && !l.starts_with("```")).collect();
let _ = writeln!(log_f, "keys {:?}", keys);
let Ok(store) = crate::store::Store::load() else { return; };
let mut seen = load_seen(&session.state_dir, &session.session_id);
let seen_path = session.path("seen");
for key in &keys {
if !seen.insert(key.clone()) {
let _ = writeln!(log_f, " skip (seen): {}", key);
continue;
}
if let Some(content) = crate::cli::node::render_node(&store, key) {
if !content.trim().is_empty() {
use std::fmt::Write as _;
writeln!(out, "--- {} (surfaced) ---", key).ok();
write!(out, "{}", content).ok();
let _ = writeln!(log_f, " rendered {}: {} bytes, out now {} bytes", key, content.len(), out.len());
if let Ok(mut f) = fs::OpenOptions::new()
.create(true).append(true).open(&seen_path) {
let ts = chrono::Local::now().format("%Y-%m-%dT%H:%M:%S");
writeln!(f, "{}\t{}", ts, key).ok();
}
}
}
}
} else if !has_none {
let log_dir = crate::store::memory_dir().join("logs");
fs::create_dir_all(&log_dir).ok();
let log_path = log_dir.join("surface-errors.log");
if let Ok(mut f) = fs::OpenOptions::new().create(true).append(true).open(&log_path) {
let ts = chrono::Local::now().format("%Y-%m-%dT%H:%M:%S");
let last = tail_lines.first().unwrap_or(&"");
let _ = writeln!(f, "[{}] unexpected surface output: {}", ts, last);
}
}
}
}
fs::remove_file(&result_path).ok();
fs::remove_file(&pid_path).ok();
if let Ok(output_file) = fs::File::create(&result_path) {
if let Ok(child) = Command::new("poc-memory")
.args(["agent", "run", "surface", "--count", "1", "--local"])
.env("POC_SESSION_ID", &session.session_id)
.stdout(output_file)
.stderr(std::process::Stdio::null())
.spawn()
{
let pid = child.id();
let ts = now_secs();
if let Ok(mut f) = fs::File::create(&pid_path) {
write!(f, "{}\t{}", pid, ts).ok();
}
}
}
}
fn cleanup_stale_files(dir: &Path, max_age: Duration) {
let entries = match fs::read_dir(dir) {
Ok(e) => e,
Err(_) => return,
};
let cutoff = SystemTime::now() - max_age;
for entry in entries.flatten() {
if let Ok(meta) = entry.metadata() {
if let Ok(modified) = meta.modified() {
if modified < cutoff {
fs::remove_file(entry.path()).ok();
}
}
}
}
}
fn hook(session: &Session) -> String {
let mut out = String::new();
let is_compaction = crate::transcript::detect_new_compaction(
&session.state_dir, &session.session_id, &session.transcript_path,
);
let cookie_path = session.path("cookie");
let is_first = !cookie_path.exists();
let log_path = session.state_dir.join(format!("hook-log-{}", session.session_id));
let Ok(mut log_f) = fs::OpenOptions::new().create(true).append(true).open(log_path) else { return Default::default(); };
let ts = chrono::Local::now().format("%Y-%m-%dT%H:%M:%S");
let _ = writeln!(log_f, "\n=== {} ({}) {} bytes ===", ts, session.hook_event, out.len());
let _ = writeln!(log_f, "is_first {is_first} is_compaction {is_compaction}");
if is_first || is_compaction {
if is_compaction {
fs::rename(&session.path("seen"), &session.path("seen-prev")).ok();
} else {
fs::remove_file(&session.path("seen")).ok();
fs::remove_file(&session.path("seen-prev")).ok();
}
fs::remove_file(&session.path("returned")).ok();
if is_first {
fs::write(&cookie_path, generate_cookie()).ok();
}
if let Ok(output) = Command::new("poc-memory").args(["admin", "load-context"]).output() {
if output.status.success() {
let ctx = String::from_utf8_lossy(&output.stdout).to_string();
if !ctx.trim().is_empty() {
let mut ctx_seen = load_seen(&session.state_dir, &session.session_id);
for line in ctx.lines() {
if line.starts_with("--- ") && line.ends_with(" ---") {
let inner = &line[4..line.len() - 4];
if let Some(paren) = inner.rfind(" (") {
let key = inner[..paren].trim();
mark_seen(&session.state_dir, &session.session_id, key, &mut ctx_seen);
}
}
}
let chunks = chunk_context(&ctx, CHUNK_SIZE);
if let Some(first) = chunks.first() {
out.push_str(first);
}
save_pending_chunks(&session.state_dir, &session.session_id, &chunks[1..]);
}
}
}
}
if let Some(chunk) = pop_pending_chunk(&session.state_dir, &session.session_id) {
out.push_str(&chunk);
} else {
let cfg = crate::config::get();
if cfg.surface_hooks.iter().any(|h| h == &session.hook_event) {
surface_agent_cycle(session, &mut out, &mut log_f);
}
}
cleanup_stale_files(&session.state_dir, Duration::from_secs(86400));
let _ = write!(log_f, "{}", out);
out
}