XYZ/CST-agent
1
0
Fork 0
forked from WHC/Hermit
Code Pull Requests Activity

v0.8.6: general mode, clipboard text, PDF text extraction

Browse Source 
Working mode: --mode coding|general (CST_MODE, settings.json, /mode,
WebUI run settings). general swaps the default framing for a general
assistant one -- workflow, safety notes, tool wording (run_shell, the
subagents) -- and /status shows it; minimal (the paper profile) stays
byte-frozen. The prompt state carries the mode so a switch leaves a
system note in history.

Clipboard: clipboard_read / clipboard_write tools (16 MiB cap read,
default 64 KiB window; writing is a WRITE permission with a preview) on
pbcopy / wl-copy / xclip / pbpaste / wl-paste / xclip and the Win32
clipboard. In the TUI, /attach paste falls back to clipboard text when
there is no image on it.

PDF: a dependency-free text extractor (src/pdf_text.c): inflate,
Flate/ASCIIHex/ASCII85, PNG/TIFF predictors, layout-independent object
scan, object streams, page tree walk with inherited resources, content
lexer (Tj/TJ/'/" and the Td/TD/T*/Tm spacing heuristics), per-font
ToUnicode CMaps and inline images skipped. Encrypted files and pages
with no text layer are refused with the reason.

Attachments: /attach (a path or files dropped on the terminal) now take
images, PDFs and text. A PDF is stored as its text layer with the mime
still saying application/pdf and its page count; anything else has to be
UTF-8 text. Documents travel inline as text parts, so CST_NO_IMAGES and
text-only models no longer drop them, while images keep their old path.

Tests: test_pdf_text (plain, bare and zlib-framed Flate, inline image,
CID + ToUnicode, object stream, error paths), documents in test_attach,
inlined documents in test_llm_body, mode in test_config.
This commit is contained in:
WHC
2026-10-11 11:09:39 +08:00
parent 50abcf1a91
commit e0b0eddf3a
28 changed files with 3291 additions and 111 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/tools/fs_tools.c
+8
View File
@@ -267,6 +267,14 @@ int cst_tool_view_image(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
cst_attachment_t *a = cst_attach_import_file(session, full, err, sizeof(err));
if (!a)
return tool_set_resultf(r, 1, "error: cannot show %.200s: %s", path, err);
if (!cst_attach_is_image(a)) {
cst_attach_free(a);
return tool_set_resultf(
r, 1,
"error: %.200s is not an image; a text file or PDF reaches the model "
"through /attach <path> (a PDF becomes its text layer)",
path);
}
snprintf(a->origin, sizeof(a->origin), "view_image");
const char *d = tool_arg(c, "detail");
if (d && (strcmp(d, "low") == 0 || strcmp(d, "high") == 0))