Every PLUGIN-COMPAT __getattr__ now calls hermes_cli.plugin_compat.warn_once(facade, name, target) before
resolving, emitting a HermesPluginCompatWarning (FutureWarning) once per process per name: old path, new
path, removal target. Importing a facade for its live API stays silent; only resolving a moved name warns.
COMPAT_MANIFEST.md documents the warning and how to silence it during migration.
Verified the runtime never routes through a pointer: every entry point (run_agent, cli, hermes_cli.main,
gateway.run, tui_gateway.server, web_server, model_tools + tool discovery, hermes_state, cron.scheduler,
browser_tool, mcp_tool, kanban, auth) imports clean and `hermes doctor` runs end to end with the warning
promoted to an error.
Also restores the check_compat_pointers CI step to .github/workflows/lint.yml, which a0be177aac dropped
when the compat layer was regenerated (the lint script itself was present; the workflow step was not).
hermes_cli/plugin_compat.py, tests/test_plugin_compat_warning.py and the two-line insert per facade are
part of the compat layer and go away with it.
77 lines
3.2 KiB
Python
77 lines
3.2 KiB
Python
#!/usr/bin/env python3
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"""Read the in-app browser / preview pane in the Hermes desktop GUI.
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The preview's content lives in the renderer (a sandboxed ``<webview>``), so this
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round-trips through the gateway's blocking-prompt bridge like ``read_terminal``
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(``preview.read.request`` -> ``preview.read.respond``). Registered as action=read of
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`desktop_preview`; the agent dispatches here with the injected callback.
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"""
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from typing import Callable, Optional
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from tools.read_terminal_tool import read_pane
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def read_preview_tool(
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start: Optional[int] = None, count: Optional[int] = None, callback: Optional[Callable] = None
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) -> str:
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"""Return the active preview tab's contents (+ metadata) as a JSON string."""
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return read_pane(callback, (("start", start, 0), ("count", count, 1)), (
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"read_preview is only available in the Hermes desktop app.",
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"start and count must be integers.",
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"Failed to read the preview pane: ",
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"No preview tab is open, or the read timed out."))
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# ---- BEGIN PLUGIN-COMPAT (revert-scheduled; see COMPAT_MANIFEST.md) ----
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# Names external plugins imported from this module before the Sep 2026 decomposition.
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# Internal code MUST NOT use these (scripts/check_compat_pointers.py fails CI if it does).
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# The whole block is removed by reverting the commit that added it.
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import json # noqa: F401,E402
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READ_PREVIEW_SCHEMA = {
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"name": "read_preview",
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"description": (
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"Read what's currently shown in the in-app browser / preview pane of the "
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"Hermes desktop GUI (the pane open_preview opens beside this chat). Call "
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"with no arguments for the first window of the active tab's content. "
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"Returns JSON {kind, url, title, text, start, end, total_chars, note?}: "
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"a URL (Browser) tab's text is the rendered page's visible text — page "
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"through longer pages with `start`/`count` (character offsets, capped "
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"per read); a file tab answers identity only (read the file with "
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"read_file); an artifact tab points back at the conversation. Use after "
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"open_preview, or whenever the user refers to what's on screen in the "
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"browser ('what does this page say?'). To close the pane, use close_preview."
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),
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"parameters": {
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"type": "object",
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"properties": {
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"start": {
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"type": "integer",
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"description": "0-indexed character offset into the page text. Omit for the start.",
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},
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"count": {
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"type": "integer",
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"description": "Characters to return from start. Defaults to (and is capped at) the per-read maximum.",
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},
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},
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},
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}
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_PLUGIN_COMPAT_LAZY = {
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'registry': ('tools.registry', 'registry'),
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'tool_error': ('tools.registry', 'tool_error'),
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}
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def __getattr__(name): # PEP 562 — lazy so no import cycles
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target = _PLUGIN_COMPAT_LAZY.get(name)
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if target is None:
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raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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import importlib
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from hermes_cli.plugin_compat import warn_once
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warn_once(__name__, name, *target)
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return getattr(importlib.import_module(target[0]), target[1])
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# ---- END PLUGIN-COMPAT ----
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