wip(929): stage 9 — drop FS-archived-deps scan; story_tools/story/create.rs reads CRDT

io/watcher and io/watcher/sweep were already CRDT-only — the watcher only
watches .huskies/{project,agents}.toml, work-item events come from CRDT
subscribe — so the remaining FS shadow reader was the bug-503 archived-dep
warning in story_tools/story/create.rs (via check_archived_deps_from_list,
which scanned .huskies/work/6_archived/). Migrate that call to the
CRDT-direct `dep_is_archived_crdt`. Drop the now-unused helper and the
four dead imports in bug/spike/refactor/criteria.rs that referenced it.

io/story_metadata/deps.rs is reduced to a module-level comment pointing
callers at the crdt_state helpers; nothing in io/ now scans the FS shadow
tree.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

server/src/http/mcp/story_tools/bug.rs

@@ -13,7 +13,7 @@ use crate::http::workflow::{
     list_refactor_files, load_pipeline_state, load_upcoming_stories, remove_criterion_from_file,
     update_story_in_file, validate_story_dirs,
 };
-use crate::io::story_metadata::{check_archived_deps_from_list, parse_unchecked_todos};
+use crate::io::story_metadata::parse_unchecked_todos;
 use crate::service::story::parse_test_cases;
 use crate::slog_warn;
 #[allow(unused_imports)]

server/src/http/mcp/story_tools/criteria.rs

@@ -13,7 +13,7 @@ use crate::http::workflow::{
     list_refactor_files, load_pipeline_state, load_upcoming_stories, remove_criterion_from_file,
     update_story_in_file, validate_story_dirs,
 };
-use crate::io::story_metadata::{check_archived_deps_from_list, parse_unchecked_todos};
+use crate::io::story_metadata::parse_unchecked_todos;
 use crate::service::story::parse_test_cases;
 use crate::slog_warn;
 #[allow(unused_imports)]

server/src/http/mcp/story_tools/refactor.rs

@@ -13,7 +13,7 @@ use crate::http::workflow::{
     list_refactor_files, load_pipeline_state, load_upcoming_stories, remove_criterion_from_file,
     update_story_in_file, validate_story_dirs,
 };
-use crate::io::story_metadata::{check_archived_deps_from_list, parse_unchecked_todos};
+use crate::io::story_metadata::parse_unchecked_todos;
 use crate::service::story::parse_test_cases;
 use crate::slog_warn;
 #[allow(unused_imports)]

server/src/http/mcp/story_tools/spike.rs

@@ -13,7 +13,7 @@ use crate::http::workflow::{
     list_refactor_files, load_pipeline_state, load_upcoming_stories, remove_criterion_from_file,
     update_story_in_file, validate_story_dirs,
 };
-use crate::io::story_metadata::{check_archived_deps_from_list, parse_unchecked_todos};
+use crate::io::story_metadata::parse_unchecked_todos;
 use crate::service::story::parse_test_cases;
 use crate::slog_warn;
 #[allow(unused_imports)]

server/src/http/mcp/story_tools/story/create.rs

@@ -2,7 +2,6 @@
 
 use crate::http::context::AppContext;
 use crate::http::workflow::create_story_file;
-use crate::io::story_metadata::check_archived_deps_from_list;
 use crate::slog_warn;
 use serde_json::Value;
 
@@ -51,9 +50,15 @@ pub(crate) fn tool_create_story(args: &Value, ctx: &AppContext) -> Result<String
     // Bug 503: warn at creation time if any depends_on points at an already-archived story.
     // Archived = satisfied semantics: the dep will resolve immediately on the next promotion
     // tick, which is surprising if the archived story was abandoned rather than cleanly done.
-    let archived_deps = depends_on
+    // Story 929: dep archived-status now comes from the CRDT, not a FS scan of 6_archived/.
+    let archived_deps: Vec<u32> = depends_on
         .as_deref()
-        .map(|deps| check_archived_deps_from_list(&root, deps))
+        .map(|deps| {
+            deps.iter()
+                .copied()
+                .filter(|&d| crate::crdt_state::dep_is_archived_crdt(d))
+                .collect()
+        })
         .unwrap_or_default();
     if !archived_deps.is_empty() {
         slog_warn!(

server/src/io/story_metadata/deps.rs

@@ -1,78 +1,6 @@
-//! Dependency resolution helpers — filesystem-backed lookups that don't
-//! require any in-memory CRDT state.
+//! Dependency resolution helpers.
 //!
-//! The CRDT-backed equivalents (`check_unmet_deps_crdt`,
-//! `check_archived_deps_crdt`) live in `crate::crdt_state::read`; callers
-//! that already have a CRDT entry should prefer those.  This module exists
-//! for the story-creation path, where dependency IDs are known in memory
-//! before any CRDT entry has been written.
-use std::fs;
-use std::path::Path;
-
-/// Return `true` if a story with the given numeric ID exists specifically in `6_archived`.
-fn dep_is_archived(project_root: &Path, dep_number: u32) -> bool {
-    let prefix = format!("{dep_number}_");
-    let exact = dep_number.to_string();
-    let dir = project_root
-        .join(".huskies")
-        .join("work")
-        .join("6_archived");
-    if let Ok(entries) = fs::read_dir(&dir) {
-        for entry in entries.flatten() {
-            let path = entry.path();
-            if path.extension().and_then(|e| e.to_str()) != Some("md") {
-                continue;
-            }
-            if let Some(stem) = path.file_stem().and_then(|s| s.to_str())
-                && (stem == exact || stem.starts_with(&prefix))
-            {
-                return true;
-            }
-        }
-    }
-    false
-}
-
-/// Given an explicit list of dep numbers, return those already in `6_archived`.
-///
-/// Used at story-creation time when the dep list is known in memory (before
-/// the story file has been written), so the caller does not need to parse
-/// the story.
-pub fn check_archived_deps_from_list(project_root: &Path, deps: &[u32]) -> Vec<u32> {
-    deps.iter()
-        .copied()
-        .filter(|&dep| dep_is_archived(project_root, dep))
-        .collect()
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn check_archived_deps_from_list_returns_archived_ids() {
-        let tmp = tempfile::tempdir().unwrap();
-        let done = tmp.path().join(".huskies/work/5_done");
-        let archived = tmp.path().join(".huskies/work/6_archived");
-        std::fs::create_dir_all(&done).unwrap();
-        std::fs::create_dir_all(&archived).unwrap();
-        std::fs::write(done.join("10_story_done.md"), "# done\n").unwrap();
-        std::fs::write(archived.join("20_story_old.md"), "# old\n").unwrap();
-        let result = check_archived_deps_from_list(tmp.path(), &[10, 20, 30]);
-        assert_eq!(result, vec![20]);
-    }
-
-    #[test]
-    fn dep_is_archived_distinguishes_done_from_archived() {
-        let tmp = tempfile::tempdir().unwrap();
-        let done = tmp.path().join(".huskies/work/5_done");
-        let archived = tmp.path().join(".huskies/work/6_archived");
-        std::fs::create_dir_all(&done).unwrap();
-        std::fs::create_dir_all(&archived).unwrap();
-        std::fs::write(done.join("10_story_done.md"), "# done\n").unwrap();
-        std::fs::write(archived.join("20_story_old.md"), "# old\n").unwrap();
-        assert!(!dep_is_archived(tmp.path(), 10));
-        assert!(dep_is_archived(tmp.path(), 20));
-        assert!(!dep_is_archived(tmp.path(), 99));
-    }
-}
+//! Story 929: all dep-status checks now go through the CRDT-backed
+//! equivalents in `crate::crdt_state::read` (`check_unmet_deps_crdt`,
+//! `check_archived_deps_crdt`, `dep_is_archived_crdt`). This module no
+//! longer hosts a filesystem-backed scan of `6_archived/`.

server/src/io/story_metadata/mod.rs

@@ -10,6 +10,5 @@ mod deps;
 mod parser;
 mod types;
 
-pub use deps::check_archived_deps_from_list;
 pub use parser::{is_story_frozen_in_store, parse_unchecked_todos, resolve_qa_mode};
 pub use types::QaMode;