Commit Graph
7 Commits
Author SHA1 Message Date
WHC 08008a5a4c v0.9.5: a session owns a directory, and the store hands out uuids
A session's transcript lived beside its attachments, both named after an id
that was a timestamp. Two things fell out of that: on a workspace two
machines share, a timestamp is not an id (the same second on both is enough
to hand out the same name), and "delete this conversation" had to chase the
jsonl, the title and a directory in a shared attachments/ tree, guessing what
belonged to whom. A phone's app data has nobody to tidy it by hand.

Now one session is one directory:

  <workspace>/.agent/sessions/
    <uuid>/session.jsonl     the transcript
    <uuid>/title             the window title, one line
    <uuid>/attachments/      images and delivered files (img-…, art-…)
    <uuid>/sub-1.jsonl       an agent role's own transcript
    CURRENT                  the id the next run opens

- src/agent_store.c: new_id() makes a uuid v4 (16 bytes from /dev/urandom,
  clock+pid only as a fallback), dir_for_id/flat_for_id/nested_for_id/
  shape_of_id decide which shape an id has, so every reader takes either.
  An id is a directory name, so it is checked as one (no "/", no "..",
  nothing starting with ".", not CURRENT or attachments). path_for_id() keeps
  the shape a session already has and makes the directory for a new id, so
  nothing had to change in the callers. store_list() lists the directories
  that hold a transcript plus the flat files, newest first. delete() is one
  rm_tree of the session's directory, plus the old shared attachments/<id>
  and CURRENT when it pointed there.
- cst_agent_store_migrate() (--migrate-store, or plain cst-agent for a
  session): moves a flat store in — <id>.jsonl to <id>/session.jsonl,
  <id>.title in, the shared attachments/<id>/ to <id>/attachments/. rename
  first, copy when the filesystem says no, and counts what it moved, so a
  second run is a no-op that says "nothing to move". On the real workspace:
  6 sessions moved, the shared directory gone, --list-sessions reads them
  back unchanged, a second run moved 0.
- cst_agent_store_id_of_path(): the id of a session path. This is the bug the
  whole change had been hiding: cst_agent_session_id() took the id from the
  file name, and the new file name is session.jsonl -- every session would
  have called itself "session" (the sidebar, CURRENT, undo, an agent role's
  directory, and the metrics file, which now also goes through the helper).
- src/attach.c: a session that owns its directory keeps its payloads inside
  it (<id>/attachments/); only the flat layout needs the shared directory and
  the id stem. Attachments behave exactly as before otherwise.
- tests/test_store.c: uuid shape and uniqueness, a small buffer refused, a
  new session's path and directory, write/list/info/title read back, the
  payload landing in <id>/attachments/, delete taking the directory with it;
  then an old-layout store: readable before the move, moved byte for byte,
  its payload readable through the new path, listed once, a second migration
  a no-op, deletion covering the migrated payload. Also in the Makefile and
  CMakeLists test lists.
- app/src/ui/UiTest.cpp: the image directory check wanted "/attachments/",
  which the new layout has no trailing slash for.

Desktop: build clean, make check 35/35, --uitest all green, --selftest and
cst-app-selftest OK, and --selftest opens a session of the migrated workspace.

Version 0.9.5.
2026-10-11 17:39:00 +08:00
WHC 7e1dbd9afa v0.8.4: WebUI sessions, diff, settings, slash commands and extensions
ci / linux (clang) (push) Successful in 6m13s
ci / musl (push) Canceled after 0s
ci / windows-cross (push) Canceled after 0s
ci / linux (gcc) (push) Canceled after 6m33s
Sessions: rename, delete and search; /api/retry regenerates the last
answer, editing a prompt resends from there; /api/export downloads the
transcript as Markdown (cst_session_export_md). Session messages carry
note/tool_result markers, so a reload rebuilds the tool steps with
their arguments, output and exit status; subagent progress is shown.

Diff and settings: /api/diff shows the real diff; /api/settings covers
protocol, max_steps, tool switches and confirm; /api/permissions edits
the rules; sandbox status is reported. Session rename no longer reads
past a short title.

Commands: slash commands with completion in the composer (/model,
/provider, /new, /retry, /undo, /compact, /export, /diff, /init,
/skill and more), a Ctrl+P palette, Shift+Tab cycles the approval
mode, F1 or ? shows the keys. "Thinking expanded" is saved in the
settings (show_thinking), "expand all tool output" in the browser.

Extensions: GET /api/extensions lists MCP servers, plugins, skills,
agent roles and subagent runs; POST /api/extensions/reload and
/api/extensions/trust; a workspace switch reloads them. /api/init and
/api/skill run on the server (cst_init_prompt shared with the TUI).

Errors, statuses and [cst] notes are shown in Chinese with a readable
reason instead of rc=; a failed turn's error survives the reload.

Tests: scripts/e2e_webui_sessions.py, e2e_webui_workspace.py and
e2e_webui_ext.py, run from e2e_webui.sh.
2026-10-10 13:57:17 +08:00
WHC 895b47274c v0.7.0: image input, model registry, prefix-cache savings
ci / linux (clang) (push) Successful in 4m41s
ci / linux (gcc) (push) Successful in 5m35s
ci / musl (push) Failing after 30s
ci / windows-cross (push) Successful in 9m59s
Images
- vision gate: text-only models get a note instead of image parts and no
  view_image tool; unknown models retry once without images on HTTP 400
- paste: Ctrl+V and /attach paste read the clipboard (wl-paste, xclip,
  pngpaste/osascript, Win32 PNG or CF_DIB converted to PNG); pasting image
  file paths attaches them
- MCP image content is stored in the session and sent with the tool result
- attach: rel path validation, base64 decode, /retry keeps images

Model registry
- built-in src/models_builtin.json embedded at build time, merged with
  <config>/models.json and cached GET /models metadata (context, vision,
  pricing); most specific rule wins per field
- /model labels, /status source, --list-models [provider]

Cache and cost
- stable request prefix (frozen tools, notes as messages), DeepSeek prefix
  completion, OpenAI/Anthropic cache hints, /cost and hit rate in the status
2026-10-08 20:34:09 +08:00
WHC 2a43ae6622 Windows: official port -- UCRT static build, UTF-8 throughout, Low IL sandbox, ncurses TUI, installer; v0.6.0
ci / linux (clang) (push) Canceled after 0s
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Build
  * cross build switches to pkgsCross.ucrt64 (shell-win.nix); curl (Schannel),
    winpthreads and ncurses 6.6 are linked statically, so the release is
    cst-agent.exe + busybox.exe (busybox-w32 Unicode) with no extra DLLs
  * windres embeds a manifest with activeCodePage=UTF-8 and a version resource
  * ncurses 6.6 Windows console driver patches (mouse button state, A_DIM,
    wide-char declarations): scripts/patches/
  * scripts/bootstrap_msys2.sh builds the same release natively in MSYS2
    UCRT64; PR #1's MINGW64 notes now point there
  * vendor/tre-regex (musl's TRE) provides <regex.h> on MinGW

UTF-8
  * paths cross the system call boundary as UTF-16 (*W APIs); console code
    pages set to 65001 and restored on exit; files are read and written in
    binary mode
  * child output that is not valid UTF-8 is decoded from the console, OEM or
    ANSI system code page
  * read_file hides CR; edit_file, apply_patch and write_file keep CRLF line
    endings and a UTF-8 BOM

OS layer and processes
  * os_dir_* and cst_fnmatch replace the POSIX-only directory walks in
    subagent, plugins, skills, undo and fs_tools; realpath / path_under and
    symlink rejection work on Windows
  * every child goes through CreateProcessW with its own environment block
    inside a Job Object, so timeouts and Esc end the whole process tree

Sandbox (auto mode, "auto · lowil")
  * run_shell runs with a restricted Low integrity token; the workspace gets
    an inheritable Low label once, the sandbox TEMP is labeled Low, and the
    credentials file gets a no-read-up label
  * drive roots, the profile and system folders are never labeled
  * network commands still ask, since Low IL does not block the network;
    Access denied and MSYS2's 0xc0000142 offer a rerun outside the sandbox
  * /sandbox lists labeled folders, /sandbox reset-labels restores them

TUI
  * raster console fonts are switched to Consolas / NSimSun while running
  * the home logo falls back to text when the console font lacks U+2580
  * mouse drag copy goes to the Windows clipboard

Distribution
  * scripts/install_windows.ps1 installs a Gitea release into
    %LOCALAPPDATA%\Programs\cst-agent and adds it to the user PATH;
    cst-agent-update.cmd reruns it; scripts/release_windows.sh uploads the
    zip with the token taken from the environment
  * scripts/run_windows.bat is gone; docs/README-windows.md is rewritten

Tests
  * new test_lowil, test_win_utf8 and test_os_dir; tests made portable
    (cst_test_util.h)
  * scripts/win_test.sh and scripts/winvm/ run the suite on English and
    Chinese Windows Server VMs as Administrator, a standard user and a
    Chinese user name: 29/29 on all six
2026-10-06 23:08:14 +08:00
WHC 7d3ec9fcb9 Extensions: skills, plugins, MCP, sub-agents; configurable keys
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- Skills (SKILL.md discovery, skill tool, /skills /skill)
- plugin.json exec tools with permission prompts, timeouts and workspace trust (/plugins)
- MCP stdio client: JSON-RPC initialize/tools/list/tools/call, mcp__server__tool, /mcp and sidebar status
- task tool with general/explore/plan and .agent/agents/*.md roles, parallel read-only runs, cancel propagation, /agents
- Keymap with Ctrl+X leader, keybinds.json overrides and /keys panel
- Collapsed thinking, throttled streaming Markdown, leaner tool output, parallel read-only tools
- Spawn: close-on-exec pipes and a process-wide fork lock
- Tests for keymap, skills, plugins, MCP, sub-agents, shell compaction; docs/plugins.md
2026-10-05 14:55:31 +08:00
WHC 2fde898da0 Usability pass: tool registry, TUI polish, saved keys and settings
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Tools
- Table-driven tool registry with permission classes and default/minimal
  profiles; new tools: edit_file, list_dir, glob, grep, delete_file,
  move_file, todo_write, web_fetch, ask_user (plus read_file paging).
- Built-in Myers diff; write tools return unified diffs.
- Persistent permission rules (.agent/permissions.json), per-turn undo
  snapshots (.agent/undo), AGENTS.md project notes, auto-compact at 80%
  of the model context, cancellable run_shell with process-group kill.

TUI
- Table-driven slash commands: /provider /key /effort /status /tools
  /permissions /yolo /undo /retry /diff /export /copy /rename /delete
  /init /max-steps /todo, with / and @ completion.
- Permission modal with diff and prefix rules, ask_user modal, todo
  panel, header with model/effort/context, bracketed paste, line editing,
  wide-char cursor, NO_COLOR and ASCII fallback; Esc never quits.

Startup and configuration
- API keys are entered in the TUI (hidden) and saved per provider in
  <config>/credentials (0600); env variables are only a fallback.
- Last provider, per-provider model and reasoning effort are remembered
  in <config>/settings.json; --effort/-e and /effort send
  reasoning_effort (low|medium|high|max) to models that accept it.
- DeepSeek preset uses deepseek-flash / deepseek-v4-pro.
- Session flags --new/--continue/--resume/--list-sessions, --yolo,
  --confirm.

Compatibility and tests
- ncurses detection, macOS/Homebrew support, make install, XDG config
  dir, POSIX cleanups; Gitea CI (gcc/clang/asan/musl/macOS).
- Unit tests for diff, fs tools, registry, undo/perms and config;
  e2e fixtures multi_file_refactor and ask_or_todo; vendored cJSON.
2026-10-05 01:47:01 +08:00
WHCandCursor 1f1fcba7ad Initial CST-Agent: portable Linux/Termux/Windows coding agent.
Vendored sashidown, OpenAI-compatible env (OPENAI_*), and bootstrap scripts.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-09-07 22:42:32 +08:00