AGENTS.md setup for codebase agents

/home/jm/data/code/toki/.envrc
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/yojson.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/xdg.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/uutf.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/topkg.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/top-closure.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/stdune.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/spawn.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/sexplib0.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/re.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/ppx_yojson_conv_lib.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/pp.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/ordering.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/ocamlformat-rpc-lib.pkg
/home/jm/data/code/toki/_build/.dev-tools.locks/ocaml-lsp-server/ocamlfind.pkg
/home/jm/data/code/toki/test_simple
/home/jm/data/code/toki/test_simple.cmo
/home/jm/data/code/toki/test_simple.cmi
/home/jm/data/code/toki/test_simple.ml
/home/jm/data/code/toki/test_design.ml
/home/jm/data/code/toki/test_design
/home/jm/data/code/toki/test_design.cmi
/home/jm/data/code/toki/.jj/working_copy/checkout
/home/jm/data/code/toki/.jj/working_copy/tree_state
/home/jm/data/code/toki/Makefile
/home/jm/data/code/toki/dune.lock/uutf.1.0.4.pkg
/home/jm/data/code/toki/dune.lock/uring.2.7.0.pkg
/home/jm/data/code/toki/dune.lock/topkg.1.1.1.pkg
/home/jm/data/code/toki/dune.lock/thread-table.1.0.0.pkg
/home/jm/data/code/toki/dune.lock/seq.base.pkg
/home/jm/data/code/toki/dune.lock/psq.0.2.1.pkg
/home/jm/data/code/toki/dune.lock/optint.0.3.0.pkg
/home/jm/data/code/toki/dune.lock/ocamlfind.1.9.8+dune.pkg
/home/jm/data/code/toki/dune.lock/ocamlbuild.0.16.1+dune.pkg
/home...

/home/jm/data/code/toki/src/main.ml
/home/jm/data/code/toki/src/tree_simple.ml
/home/jm/data/code/toki/src/pass_simple.ml
/home/jm/data/code/toki/src/pass.ml
/home/jm/data/code/toki/src/pass.mli
/home/jm/data/code/toki/src/ui_details.ml
/home/jm/data/code/toki/src/ui_tree.ml
/home/jm/data/code/toki/src/tree.mli
/home/jm/data/code/toki/src/tree.ml

<file>
00001| (lang dune 3.16)
00002| (generate_opam_files true)
00003| (formatting (enabled_for dune))
00004| 
00005| (name toki)
00006| (source (github manno23/pass_tui))
00007| (license ISC)
00008| (authors nobody)
00009| (maintainers nobody)
00010| 
00011| (package
00012|  (name toki)
00013|  (synopsis "Terminal UI for GNU pass password manager")
00014|  (description
00015|    "keyz provides an intuitive terminal interface for managing GNU pass passwords.
00016|     Built with OCaml.
00017|     Security-first design with minimal password exposure.")
00018|     (depends
00019|       (dune (>= 3.16))
00020|       (ocamlformat :with-dev-setup)
00021|       (utop :with-dev-setup)
00022|       (ocamllsp :with-dev-setup)
00023|       seq
00024|       eio
00025|       eio_main
00026|       lwd
00027|       nottui
00028|       nottui-unix
00029|       (notty-community (= 0.2.4))
00030|       (ocaml (= 5.3.0)))
00031|    )
00032| 

(End of file - total 32 lines)
</file>

/home/jm/data/code/toki/dune.lock/dune-configurator.3.21.0.pkg
/home/jm/data/code/toki/dune-project
/home/jm/data/code/toki/src/dune

<file>
00001| (executable
00002|  (name main)
00003|  (public_name toki)
00004|  (libraries eio_main eio.unix notty notty.unix nottui nottui-unix lwd seq))
00005| 

(End of file - total 5 lines)
</file>

<file>
00001| .PHONY: build test clean
00002| 
00003| build:
00004| 	opam exec -- dune build
00005| 
00006| test:
00007| 	opam exec -- dune test
00008| 
00009| clean:
00010| 	opam exec -- dune clean
00011| 
00012| run:
00013| 	opam exec -- dune exec toki
00014| 
00015| fmt:
00016| 	opam exec -- dune fmt
00017| 
00018| install-deps:
00019| 	opam install eio eio_main lwd nottui nottui-unix notty-community seq
00020| 

(End of file - total 20 lines)
</file>

<file>
00001| version = 0.28.1
00002| 

(End of file - total 2 lines)
</file>

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<file>
00001| (* Keyz - Terminal UI for GNU pass *)
00002| 
00003| open Nottui
00004| open Lwd
00005| open Lwd.Infix
00006| 
00007| (* This version uses Eio fibers to handle:
00008|    - Input events concurrently
00009|    - Background tasks (like a timer updating the UI)
00010|    - Responsive rendering
00011| 
00012|    This demonstrates how Eio's concurrency model integrates with
00013|    Nottui's reactive UI system. *)
00014| 
00015| let run_eio ~quit ui =
00016|   Eio_main.run @@ fun _env ->
00017|   Eio.Switch.run @@ fun sw ->
00018| 
00019|   let term = Notty_unix.Term.create () in
00020|   let input_fd, _output_fd = Notty_unix.Term.fds term in
00021|   let renderer = Renderer.make () in
00022|   let root = Lwd.observe ui in
00023| 
00024|   (* Render the UI to the terminal *)
00025|   let render () =
00026|     let size = Notty_unix.Term.size term in
00027|     let rec stabilize () =
00028|       let tree = Lwd.quick_sample root in
00029|       Renderer.update renderer size tree;
00030|       let image = Renderer.image renderer in
00031|       if Lwd.is_damaged root then stabilize () else image
00032|     in
00033|     let image = stabilize () in
00034|     Notty_unix.Term.image term image
00035|   in
00036| 
00037|   (* Input handling fiber *)
00038|   let rec input_loop () =
00039|     if not (Lwd.peek quit) then (
00040|       try
00041|         (* Check cancellation before blocking *)
00042|         Eio.Fiber.check ();
00043| 
00044|         (* Wait for input using Eio *)
00045|         Eio_unix.await_readable input_fd;
00046| 
00047|         (* Process the event *)
00048|         match Notty_unix.Term.event term with
00049|         | `End -> Lwd.set quit true
00050|         | `Resize _ -> input_loop ()
00051|         | #Notty.Unescape.event as event ->
00052|           let event = (event : Notty.Unescape.event :> Ui.event) in
00053|           ignore (Renderer.dispatch_event renderer event : [`Handled | `Unhandled]);
00054|           input_loop ()
00055...

<file>
00001| (* GNU pass store scanning *)
00002| 
00003| open Eio.Std
00004| 
00005| type entry = {
00006|   name : string;
00007|   path : string list;  (* relative path from store root *)
00008|   is_dir : bool;
00009| }
00010| 
00011| type tree =
00012|   | Dir of entry * tree list
00013|   | File of entry
00014| 
00015| let ( / ) = Eio.Path.( / )
00016| let home_dir = Unix.getenv "HOME"
00017| let store_path = home_dir ^ "/.password-store"
00018| 
00019| let rec scan_dir dir (rel_path : string list) : tree list =
00020|   match Eio.Path.read_dir dir with
00021|   | entries ->
00022|       List.fold_left (fun acc name ->
00023|           if name = "." || name = ".." then acc
00024|           else if String.length name > 4 && String.sub name (String.length name - 4) 4 = ".gpg" then
00025|             let entry = { name = String.sub name 0 (String.length name - 4); path = List.rev (name :: rel_path); is_dir = false } in
00026|             File entry :: acc
00027|           else if String.length name > 0 && name.[0] = '.' then
00028|             acc  (* ignore dotfiles except .gpg-id *)
00029|           else
00030|             (* check if it's a directory *)
00031|             let child_dir = dir / name in
00032|             match Eio.Path.kind ~follow:true child_dir with
00033|             | `Directory ->
00034|                 let child_path = name :: rel_path in
00035|                 let children = scan_dir child_dir child_path in
00036|                 let entry = { name; path = List.rev child_path; is_dir = true } in
00037|                 Dir (entry, children) :: acc
00038|             | _ ->
00039|                 acc  (* ignore non-directory, non-.gpg files *)
00040|       ) [] entries
00041|   | exception exn ->
00042|       traceln "Error scanning %a: %s" Eio.Path.pp dir (Printexc.to_string exn);
00043|       []
00044| 
00045| let scan_store (env : <fs : Eio.Path.t; ..>) =
00046|   let fs = env#fs in
00047|   let store_dir = Eio.Path store_path in
00048...

<file>
00001| (* Tree data structure and navigation *)
00002| 
00003| type entry = Pass.entry
00004| type tree = Pass.tree
00005| 
00006| type state = {
00007|   tree : tree;
00008|   selected : string list;  (* path to selected node *)
00009|   expanded : string list list;  (* set of expanded directory paths *)
00010| }
00011| 
00012| let initial_state tree =
00013|   let selected = [] in
00014|   let expanded = [] in
00015|   { tree; selected; expanded }
00016| 
00017| let is_expanded state path =
00018|   List.mem path state.expanded
00019| 
00020| let toggle_expanded state path =
00021|   if is_expanded state path then
00022|     { state with expanded = List.filter (fun p -> p <> path) state.expanded }
00023|   else
00024|     { state with expanded = path :: state.expanded }
00025| 
00026| let parent_path path =
00027|   match List.rev path with
00028|   | [] -> []
00029|   | _ :: rev_tail -> List.rev rev_tail
00030| 
00031| let rec flatten_tree tree : entry list =
00032|   match tree with
00033|   | File e -> [e]
00034|   | Dir (e, children) ->
00035|       e :: List.concat_map flatten_tree children
00036| 
00037| let visible_entries state =
00038|   (* TODO: filter based on expanded directories *)
00039|   flatten_tree state.tree
00040| 
00041| (* visible items in order with their paths and is_dir flag *)
00042| let visible_items state =
00043|   let rec collect tree expanded depth acc =
00044|     match tree with
00045|     | File e ->
00046|         (e.path, e, false, depth) :: acc
00047|     | Dir (e, children) ->
00048|         let path = e.path in
00049|         let is_expanded = List.mem path expanded in
00050|         let acc' = (path, e, true, depth) :: acc in
00051|         if is_expanded then
00052|           List.fold_left (fun a child -> collect child expanded (depth + 1) a) acc' children
00053|         else
00054|           acc'
00055|   in
00056|   List.rev (collect state.tree state.expanded 0 [])
00057| 
00058| let move_selection state dir =
000...

<file>
00001| (* Tree UI widget *)
00002| 
00003| open Nottui
00004| open Lwd
00005| open Lwd.Infix
00006| open Tree
00007| 
00008| let attr_selected = Notty.A.(st bold ++ bg white ++ fg black)
00009| let attr_normal = Notty.A.empty
00010| 
00011| let visible_items state =
00012|   let rec collect tree expanded depth acc =
00013|     match tree with
00014|     | File e ->
00015|         (e.path, e, false, depth) :: acc
00016|     | Dir (e, children) ->
00017|         let path = e.path in
00018|         let is_expanded = List.mem path expanded in
00019|         let acc' = (path, e, true, depth) :: acc in
00020|         if is_expanded then
00021|           List.fold_left (fun a child -> collect child expanded (depth + 1) a) acc' children
00022|         else
00023|           acc'
00024|   in
00025|   List.rev (collect state.tree state.expanded 0 [])
00026| 
00027| let render_entry depth entry is_dir selected =
00028|   let prefix = if is_dir then (if selected then "[-] " else "[+] ") else "    " in
00029|   let indent = String.make (depth * 2) ' ' in
00030|   let text = indent ^ prefix ^ entry.name in
00031|   let attr = if selected then attr_selected else attr_normal in
00032|   Nottui_widgets.string ~attr text
00033| 
00034| let make (state_var : state var) =
00035|   let ui =
00036|     Lwd.map (get state_var) ~f:(fun state ->
00037|         let items = visible_items state in
00038|         let selected_path = state.selected in
00039|         let entries_ui =
00040|           List.map (fun (path, entry, is_dir, depth) ->
00041|               let selected = path = selected_path in
00042|               render_entry depth entry is_dir selected
00043|             ) items
00044|         in
00045|         match entries_ui with
00046|         | [] -> Nottui_widgets.string "No passwords found"
00047|         | hd :: tl -> List.fold_left Ui.join_y hd tl
00048|       )
00049|   in
00050|   let keyboard_handler key =
00051|     match key with
00052|     | (`ASCII 'j', []) ->
0...

<file>
00001| (* Simple test of tree navigation *)
00002| 
00003| type entry = { name : string; path : string list; is_dir : bool }
00004| type tree = Dir of entry * tree list | File of entry
00005| 
00006| let scan_store () =
00007|   let root = { name = "ROOT"; path = []; is_dir = true } in
00008|   let email = { name = "email"; path = ["email"]; is_dir = false } in
00009|   let web_dir = { name = "web"; path = ["web"]; is_dir = true } in
00010|   let github = { name = "github"; path = ["web"; "github"]; is_dir = false } in
00011|   Dir (root, [
00012|     File email;
00013|     Dir (web_dir, [File github])
00014|   ])
00015| 
00016| type state = {
00017|   tree : tree;
00018|   selected : string list;
00019|   expanded : string list list;
00020| }
00021| 
00022| let initial_state tree = 
00023|   { tree; selected = []; expanded = [] }
00024| 
00025| let is_expanded state path = List.mem path state.expanded
00026| 
00027| let toggle_expanded state path =
00028|   if is_expanded state path then
00029|     { state with expanded = List.filter (fun p -> p <> path) state.expanded }
00030|   else
00031|     { state with expanded = path :: state.expanded }
00032| 
00033| let rec visible_items tree expanded depth acc =
00034|   match tree with
00035|   | File e -> (e.path, e, false, depth) :: acc
00036|   | Dir (e, children) ->
00037|       let path = e.path in
00038|       let is_exp = List.mem path expanded in
00039|       let acc' = (path, e, true, depth) :: acc in
00040|       if is_exp then
00041|         List.fold_left (fun a child -> visible_items child expanded (depth + 1) a) acc' children
00042|       else
00043|         acc'
00044| 
00045| let visible_items state =
00046|   List.rev (visible_items state.tree state.expanded 0 [])
00047| 
00048| let find_index items target =
00049|   let rec loop i = function
00050|     | [] -> None
00051|     | (path, _, _, _) :: rest ->
00052|         if path = target then Some i else loop (i + 1) rest
00053|   in
00054|   loop ...

<file>
00001| (* Test the tree UI design *)
00002| 
00003| module Pass = struct
00004|   type entry = { name : string; path : string list; is_dir : bool }
00005|   type tree = Dir of entry * tree list | File of entry
00006|   
00007|   let scan_store (_env : unit) =
00008|     let root = { name = "ROOT"; path = []; is_dir = true } in
00009|     let email = { name = "email"; path = ["email"]; is_dir = false } in
00010|     let web_dir = { name = "web"; path = ["web"]; is_dir = true } in
00011|     let github = { name = "github"; path = ["web"; "github"]; is_dir = false } in
00012|     Dir (root, [
00013|       File email;
00014|       Dir (web_dir, [File github])
00015|     ])
00016| end
00017| 
00018| module Tree = struct
00019|   type entry = Pass.entry
00020|   type tree = Pass.tree
00021|   
00022|   type state = {
00023|     tree : tree;
00024|     selected : string list;
00025|     expanded : string list list;
00026|   }
00027|   
00028|   let initial_state tree = 
00029|     let selected = [] in
00030|     let expanded = [] in
00031|     { tree; selected; expanded }
00032|   
00033|   let is_expanded state path = List.mem path state.expanded
00034|   
00035|   let toggle_expanded state path =
00036|     if is_expanded state path then
00037|       { state with expanded = List.filter (fun p -> p <> path) state.expanded }
00038|     else
00039|       { state with expanded = path :: state.expanded }
00040|   
00041|   let parent_path = function
00042|     | [] -> []
00043|     | path -> List.rev (List.tl (List.rev path))
00044|   
00045|   let rec visible_items tree expanded depth acc =
00046|     match tree with
00047|     | Pass.File e -> (e.path, e, false, depth) :: acc
00048|     | Pass.Dir (e, children) ->
00049|         let path = e.path in
00050|         let is_exp = List.mem path expanded in
00051|         let acc' = (path, e, true, depth) :: acc in
00052|         if is_exp then
00053|           List.fold_left (fun a child -> visible_items child expanded (...

<file>
00001| (* Test for pass.ml *)
00002| 
00003| let test_scan_store () =
00004|   print_endline "Testing pass store scanning...";
00005|   try
00006|     let home_dir = Unix.getenv "HOME" in
00007|     let store_path = home_dir ^ "/.password-store" in
00008|     print_endline ("Looking for password store at: " ^ store_path);
00009|     
00010|     (* Create a mock environment for testing *)
00011|     let mock_env = object
00012|       method fs = failwith "Mock fs not implemented"
00013|     end in
00014|     
00015|     print_endline "Test setup complete (actual scanning requires Eio runtime)";
00016|     true
00017|   with exn ->
00018|     print_endline ("Test failed: " ^ Printexc.to_string exn);
00019|     false
00020| 
00021| let () =
00022|   if test_scan_store () then
00023|     print_endline "✓ All tests passed"
00024|   else
00025|     print_endline "✗ Some tests failed"
00026| 

(End of file - total 26 lines)
</file>

<file>
00001| open Eio.Std
00002| 
00003| let test_fs env =
00004|   let fs = env#fs in
00005|   let path = fs / "/tmp" in
00006|   match Eio.Path.kind ~follow:true path with
00007|   | `Directory -> print_endline "Found /tmp directory"
00008|   | _ -> print_endline "/tmp not found"
00009| 
00010| let () =
00011|   Eio_main.run @@ fun env ->
00012|   test_fs env
00013| 

(End of file - total 13 lines)
</file>

<file>
00001| # Keyz - Agent Context Primer
00002| 
00003| ## Project Overview
00004| **Keyz** is a Terminal UI for GNU pass password manager, built with OCaml 5.3+, Eio, Notty, and Lwd. It provides an intuitive interface for managing passwords stored in the GNU pass hierarchy.
00005| 
00006| ## Environment Setup
00007| ```bash
00008| eval $(opam env --switch=.)
00009| ```
00010| - Uses opam switch `.` (local switch)
00011| - Dependencies: eio, eio_main, notty, lwd, seq
00012| 
00013| ## Development Commands
00014| ```bash
00015| dune pkg lock       # If dependencies change in dune files
00016| dune build          # Build project
00017| dune run            # Run executable (toki)
00018| dune test           # Run tests
00019| dune build @doc     # Build documentation
00020| dune fmt            # Format code (ocamlformat)
00021| ```
00022| 
00023| ## Project Structure
00024| - `src/` – Core source files
00025|   - `main.ml` – Entry point (Eio-based TUI loop)
00026|   - `app.ml{i}` – Application type
00027|   - `pass.ml{i}` – GNU pass integration
00028|   - `store.ml{i}` – Password store abstraction
00029|   - `notty.ml{i}` – Terminal UI wrapper
00030| - `test_build/` – Test executables
00031| - `.old-docs/` – Planning and design documents
00032| 
00033| ## Key Concepts
00034| - **GNU pass** as central storage (password files in `~/.password-store`)
00035| - **Eio** for concurrency and I/O
00036| - **Notty** for terminal rendering
00037| - **Lwd** for reactive UI components (planned)
00038| - **Targets 1‑3** – See `.old-docs/PLAN.md` for phased development
00039| 
00040| ## Relevant Skills
00041| - `ocaml-testing` – Testing strategies, alcotest, eio mocks
00042| - `ocaml-project-setup` – Project metadata, CI, release preparation
00043| - `ocaml-docs` – Fixing odoc warnings, cross‑package references
00044| - `ocaml-code-style` – Refactoring, naming conventions, complexity reduction
00045| - `effects` – OCaml 5 algebraic effects design patterns
00046| - `cmdliner` – Comm...

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