Files
DemonGatanjieu-Anomalous_Mo…/api/mcp_canvas_edit.py
T
DemonGatanjieuandClaude Opus 5.5 24a9eb9ed9 Make ask_user wait for the answer even when told not to
The AI's question waits at least 30 s, so an answer the user gives in
Anomalous right away reaches the same call and the AI goes on without a word
in its chat (Gemini asked with wait_seconds 0, stopped, and the user had to
say "go on"). add_node's description points to add_nodes for a group of
nodes wired to each other.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 17:16:10 +08:00

315 lines
18 KiB
Python

"""The MCP tools that build a workflow on the canvas the user sees: add_node, connect_nodes,
set_values, remove_nodes and new_workflow (a new tab, blank or built from a workflow in
ComfyUI's API form) run in the open page like mcp_actions.py's canvas tools
(web/modules/mcp_canvas_edit.js: each one Ctrl+Z step, in the activity log as the AI's, so the
AI workbench shows what it changed), and find_nodes reads the node types this ComfyUI has
from its own /object_info. Arguments are checked here for shape and size; the page checks
them against the nodes themselves before anything changes."""
import json
import threading
import time
from . import ai_tasks, ai_toolbox, mcp_fill
from .mcp_actions import _action, _local, _page
from .mcp_tools import ToolError
MAX_FOUND = 20
MAX_SEARCH = 5
MAX_CHOICES_NAMED = 60
MAX_REMOVE = 30
MAX_WORKFLOW_NODES = 200
MAX_WORKFLOW_BYTES = 1_000_000
INFO_SECONDS = 120
_info = {"at": 0.0, "data": None}
_info_lock = threading.Lock()
def object_info(ctx):
"""ComfyUI's node definitions, as its own page reads them (kept a little while)."""
with _info_lock:
if _info["data"] is None or time.monotonic() - _info["at"] > INFO_SECONDS:
status, data = _local(ctx, "GET", "/object_info", timeout=60)
if status != 200 or not isinstance(data, dict):
raise ToolError(f"ComfyUI's node list is unavailable ({status}).")
_info.update(at=time.monotonic(), data=data)
return _info["data"]
def forget_object_info():
"""After a model moved: the next look reads ComfyUI's lists anew."""
with _info_lock:
_info["data"] = None
def _input(name, conf, required, choices):
kind, options = (conf + [None, None])[:2] if isinstance(conf, list) else (conf, None)
options = options if isinstance(options, dict) else {}
out = {"name": name, "required": required}
listed = kind if isinstance(kind, list) else options.get("options") if kind == "COMBO" else None
if isinstance(listed, list):
out["type"] = "choice"
out["choices"] = [str(item) for item in listed[:choices]]
if len(listed) > choices:
out["choices_count"] = len(listed)
else:
out["type"] = str(kind)
for key in ("default", "min", "max", "multiline"):
if key in options and isinstance(options[key], (str, int, float, bool)):
out[key] = options[key] if not isinstance(options[key], str) else options[key][:200]
if options.get("forceInput"):
out["socket_only"] = True
return out
def _picked(ctx):
"""What the user picked for this task (ai_toolbox.py): its node types and packs come first in every search."""
return ai_toolbox.effective(ai_tasks.get_task(ctx["task"])) if ctx.get("task") else None
def _allowed(ctx, types):
"""Refuses node types the user's "only" picks leave out, before the page is asked."""
if not ctx.get("task"):
return
info = object_info(ctx)
refused = ai_toolbox.refused(ctx["task"], types, info)
if refused:
box = ai_toolbox.effective(ai_tasks.get_task(ctx["task"])) or {}
allowed = [*(box.get("nodes") or []), *(f"every node of the pack {pack}" for pack in box.get("packs") or [])]
raise ToolError(f"For this task the user allowed only these node types (and ComfyUI's built-in ones): "
f"{', '.join(allowed) or 'none'}. Not allowed: {', '.join(refused)}. "
"If you need one, ask the user in the AI workbench (show_panel) instead.")
def _node(type_name, info, choices):
inputs = []
for section, required in (("required", True), ("optional", False)):
for name, conf in ((info.get("input") or {}).get(section) or {}).items():
inputs.append(_input(name, conf, required, choices))
names = info.get("output_name") or info.get("output") or []
outputs = [{"slot": slot, "name": str(name), "type": str(kind)}
for slot, (name, kind) in enumerate(zip(names, info.get("output") or []))]
source = ai_toolbox.source_of(info)
return {"type": type_name, "display_name": info.get("display_name") or type_name, "category": info.get("category") or "",
"source": source, "description": str(info.get("description") or "")[:300], "inputs": inputs, "outputs": outputs,
**({"paid": True} if source == "api" else {}), **({"deprecated": True} if info.get("deprecated") else {})}
def find_nodes(ctx, query="", types=None):
info = object_info(ctx)
if types:
missing = [name for name in types if name not in info]
found = [_node(name, info[name], MAX_CHOICES_NAMED) for name in types if name in info][:MAX_FOUND]
return {"nodes": found, **({"not_found": missing} if missing else {})}
words = str(query or "").lower().split()
if not words:
raise ToolError("Give query (words in a node's name, category or description) or types.")
picked = _picked(ctx)
scored = []
for name, item in info.items():
haystack = " ".join(str(part or "") for part in (name, item.get("display_name"), item.get("category"), item.get("description"))).lower()
if all(word in haystack for word in words):
label = f"{name} {item.get('display_name') or ''}".lower()
scored.append((not ai_toolbox.chosen(picked, name, item), 0 if name.lower() == " ".join(words) else 1 if all(w in label for w in words) else 2,
bool(item.get("deprecated")), ai_toolbox.source_of(item) == "api", len(name), name))
scored.sort()
# Searching identifies candidates; don't repeat hundreds of model choices/settings for each.
nodes = []
for *_rest, name in scored[:MAX_SEARCH]:
detail = _node(name, info[name], 0)
nodes.append({"type": name, "display_name": str(detail["display_name"])[:80],
"source": str(detail["source"])[:80],
"description": detail["description"][:96],
"inputs": [f"{i['name'][:48]}:{i['type'][:48]}" for i in detail["inputs"][:8]],
"outputs": [f"{i['name'][:48]}:{i['type'][:48]}" for i in detail["outputs"][:8]],
**{k: detail[k] for k in ("paid", "deprecated") if k in detail},
**({"more_inputs": len(detail["inputs"]) - 8} if len(detail["inputs"]) > 8 else {})})
for node in nodes:
if ai_toolbox.chosen(picked, node["type"], info[node["type"]]):
node["picked_by_user"] = True
while len(nodes) > 1 and len(json.dumps(nodes, ensure_ascii=False)) > 3000:
nodes.pop()
return {"nodes": nodes, "total_matches": len(scored),
"note": "Brief candidates; types=[chosen type] gives settings/choices and output slots when needed. "
"Narrow query for other matches. picked_by_user: preferred; paid: spends credits, use only when asked."}
def _id(value, what):
if isinstance(value, bool) or not isinstance(value, (int, str)) or not str(value).strip() or len(str(value)) > 40:
raise ToolError(f"{what} is a node id from describe_canvas or a tool's answer.")
return value
def _type(value):
if not isinstance(value, str) or not value.strip() or len(value) > 200:
raise ToolError("type is a node type, as find_nodes gives it (e.g. KSampler).")
return value.strip()
def _next(answer):
"""The checklist's next step after a change (the page answers with what is still unwired)."""
if isinstance(answer, dict):
answer["next"] = ("Connect the new branch to an output; it does not reach one yet."
if answer.get("reaches_output") is False else
"Wire unwired inputs with connect_nodes; unique types need only the two node IDs."
if answer.get("unwired") else "No required input is unwired; run_workflow validates and runs the graph.")
return answer
def _ids(value, label):
if value is None:
return []
items = value if isinstance(value, list) else [value]
if not 1 <= len(items) <= 8:
raise ToolError(f"{label} names 1 to 8 node IDs.")
return [_id(item, label) for item in items]
def add_node(ctx, type, values=None, title="", near_node_id=None, insert_after=None, insert_type=None,
wire_from=None, wire_to=None, replace=False):
if not isinstance(replace, bool):
raise ToolError("replace must be true or false.")
if insert_type is not None and (insert_after is None or not isinstance(insert_type, str) or not 0 < len(insert_type) <= 60):
raise ToolError("insert_type names a through type (e.g. IMAGE) and needs insert_after.")
wiring = {"wire_from": _ids(wire_from, "wire_from"), "wire_to": _ids(wire_to, "wire_to"), "replace": replace}
if insert_after is not None:
wiring.update(insert_after=_id(insert_after, "insert_after"), insert_type=insert_type)
_allowed(ctx, [_type(type)])
return _next(_page("add_node", {"type": _type(type), "values": mcp_fill.flat_values(values), "title": str(title or "")[:120],
"near_node_id": None if near_node_id is None else _id(near_node_id, "near_node_id"), **wiring}))
def _api_nodes(nodes, canvas_refs=False):
"""A workflow (or group) in ComfyUI's API form, checked for shape and size; the page checks the rest.
With canvas_refs a link may name a canvas node as "#12", an output by slot or name, and a node wire_to."""
if not isinstance(nodes, dict) or not 0 < len(nodes) <= MAX_WORKFLOW_NODES:
raise ToolError(f"nodes is a workflow in ComfyUI's API form: {{id: {{class_type, inputs}}}}, up to {MAX_WORKFLOW_NODES} nodes.")
if len(json.dumps(nodes, ensure_ascii=False)) > MAX_WORKFLOW_BYTES:
raise ToolError("That workflow is too large.")
for key, spec in nodes.items():
if (len(key) > 40 or not isinstance(spec, dict) or not isinstance(spec.get("class_type"), str)
or not isinstance(spec.get("inputs", {}), dict)):
raise ToolError(f"Node {key[:40]}: each node is {{class_type, inputs: {{name: value or [node id, output slot]}}}}.")
_type(spec["class_type"])
mcp_fill.flat_values({name: value for name, value in spec.get("inputs", {}).items() if not isinstance(value, list)})
if not canvas_refs:
continue
if key.startswith("#"):
raise ToolError(f"Node {key[:40]}: a key of the group cannot start with #, which names canvas nodes.")
for name, value in spec.get("inputs", {}).items():
if isinstance(value, list) and (len(value) != 2 or not isinstance(value[0], (str, int)) or isinstance(value[1], bool)
or not isinstance(value[1], (str, int)) or len(str(value[1])) > 100):
raise ToolError(f"Node {key[:40]}, input {name[:100]}: a link is [a key of this group or \"#<canvas node id>\", output slot or name].")
if isinstance(value, list) and isinstance(value[1], str) and value[1].strip().isdigit():
value[1] = int(value[1])
if spec.get("wire_to") is not None:
spec["wire_to"] = _ids(spec["wire_to"], f"{key[:40]}.wire_to")
return nodes
def add_nodes(ctx, nodes, near_node_id=None, replace=False):
if not isinstance(replace, bool):
raise ToolError("replace must be true or false.")
_api_nodes(nodes, canvas_refs=True)
_allowed(ctx, [spec["class_type"] for spec in nodes.values()])
return _next(_page("add_nodes", {"nodes": nodes, "replace": replace,
"near_node_id": None if near_node_id is None else _id(near_node_id, "near_node_id")}, timeout=60))
def connect_nodes(ctx, from_node_id, to_node_id, input=None, output=None, replace=None):
if output is not None and (isinstance(output, bool) or not isinstance(output, (int, str)) or len(str(output)) > 100):
raise ToolError("output is the output's slot number or its name.")
output = int(output) if isinstance(output, str) and output.strip().isdigit() else output
if input is not None and (not isinstance(input, str) or not input or len(input) > 100):
raise ToolError("input is the input's name, as add_node, find_nodes or describe_canvas give it.")
if replace is not None and not isinstance(replace, bool):
raise ToolError("replace must be true or false.")
# Preserve the old explicit-input form's default output and replacement behaviour.
if input is not None and output is None:
output = 0
return _next(_page("connect_nodes", {"from_node_id": _id(from_node_id, "from_node_id"), "output": output,
"to_node_id": _id(to_node_id, "to_node_id"), "input": input, "replace": replace}))
def set_values(ctx, node_id=None, values=None):
if node_id is None:
return _page("set_values", {"node_id": None, "values": mcp_fill.node_values(values)})
if not values:
raise ToolError("values is an object {setting name: value}.")
return _page("set_values", {"node_id": _id(node_id, "node_id"), "values": mcp_fill.flat_values(values)})
def remove_nodes(ctx, node_ids):
if not isinstance(node_ids, list) or not 0 < len(node_ids) <= MAX_REMOVE:
raise ToolError(f"node_ids lists 1 to {MAX_REMOVE} node ids.")
return _next(_page("remove_nodes", {"node_ids": [_id(item, "node_ids") for item in node_ids]}))
def new_workflow(ctx, name="", nodes=None):
if nodes is not None:
_api_nodes(nodes)
_allowed(ctx, [spec["class_type"] for spec in nodes.values()])
return _page("new_workflow", {"name": str(name or "")[:60], "nodes": nodes}, timeout=60)
def open_workflow(ctx, name):
filename, name = mcp_fill.saved_workflow(name)
return _page("open_workflow", {"filename": filename, "name": name}, timeout=60)
_NODE_ID = {"type": "integer", "description": "A node id."}
_VALUES = {"type": "object", "description": "{setting: value}; a choice exactly as listed."}
_NEIGHBOURS = {"oneOf": [_NODE_ID, {"type": "array", "items": _NODE_ID, "minItems": 1, "maxItems": 8}]}
CANVAS_TOOLS = dict([
_action("find_nodes", "Look up node types",
"Node types, built in and custom. query: up to 5 brief candidates; types=[...]: their inputs, "
"choices, ranges and outputs.",
find_nodes, {"query": {"type": "string"}, "types": {"type": "array", "items": {"type": "string"}, "maxItems": MAX_FOUND}},
read_only=True),
_action("add_node", "Add a node",
"Adds a node, wired in the same call: wire_from feeds it, wire_to takes its output (an input already "
"fed is spliced, its old source now feeding the new node: a ControlNet or LoRA before a KSampler); "
"insert_after=ID splices it behind a node. Same type or same socket name wires itself; anything "
"ambiguous changes nothing and lists the choices; replace:true replaces what it cannot splice. One "
"Ctrl+Z step. Several nodes wired to each other (an inpaint or upscale branch): add_nodes, in one call.",
add_node, {"type": {"type": "string", "description": "A node type from find_nodes, e.g. KSampler."},
"values": _VALUES, "title": {"type": "string"}, "near_node_id": _NODE_ID,
"insert_after": _NODE_ID, "insert_type": {"type": "string", "description": "Through type, only if asked (e.g. IMAGE)."},
"wire_from": _NEIGHBOURS, "wire_to": _NEIGHBOURS, "replace": {"type": "boolean"}}, ["type"]),
_action("add_nodes", "Add a group of nodes",
"Adds a group of nodes in one call, as one block, in ComfyUI's API form: {\"a\": {\"class_type\": "
"\"VAEEncode\", \"inputs\": {\"pixels\": [\"#12\", 0], \"vae\": [\"#4\", \"VAE\"]}}, \"b\": {..., \"inputs\": "
"{\"samples\": [\"a\", 0]}, \"wire_to\": 15}}. A link names a key of the group or a canvas node \"#id\", and "
"an output slot or name; wire_to as in add_node. Checked first; one Ctrl+Z step; the answer maps keys "
"to node ids.",
add_nodes, {"nodes": {"type": "object"}, "near_node_id": _NODE_ID, "replace": {"type": "boolean"}}, ["nodes"]),
_action("connect_nodes", "Wire two nodes",
"Wires two nodes: every unique matching type, and same-type sockets of the same name (positive to "
"positive). Anything ambiguous (a lone CONDITIONING into positive or negative, wildcards) changes "
"nothing and lists the choices; then give output and input. replace:true lets it replace wires. One "
"Ctrl+Z step.",
connect_nodes, {"from_node_id": _NODE_ID, "output": {"type": "string", "description": "Optional output slot number or name."},
"to_node_id": _NODE_ID, "input": {"type": "string"}, "replace": {"type": "boolean"}},
["from_node_id", "to_node_id"]),
_action("set_values", "Change a node's settings",
"Changes settings of any node, a third party's too, checked against what each takes: {setting: value} "
"goes to the one node that has it; name the node when several do: {\"12\": {\"denoise\": 0.5}}; or "
"node_id with its settings. Prompts: set_prompt; models: set_model. One Ctrl+Z step.",
set_values, {"node_id": _NODE_ID, "values": _VALUES}, ["values"], destructive=True),
_action("remove_nodes", "Remove nodes",
"Removes nodes from the open workflow, with their wires. One Ctrl+Z step.",
remove_nodes, {"node_ids": {"type": "array", "items": _NODE_ID, "maxItems": MAX_REMOVE}}, ["node_ids"],
destructive=True),
_action("new_workflow", "Start a new workflow",
"Opens a new workflow tab, the user's open one untouched: blank, or built from nodes in ComfyUI's API "
"form ({\"1\": {\"class_type\": \"CLIPTextEncode\", \"inputs\": {\"text\": \"...\", \"clip\": [\"2\", 1]}}}: a value "
"or [node id, output slot]). Checked before it opens; the answer maps your ids to node ids.",
new_workflow, {"name": {"type": "string"}, "nodes": {"type": "object"}}),
_action("open_workflow", "Open a saved workflow",
"Opens one of the user's saved workflows (list_workflows names them) in a new tab, leaving the open one "
"as it was, to run it or build on it with add_node, connect_nodes and set_values.",
open_workflow, {"name": {"type": "string", "description": "A workflow name from list_workflows."}}, ["name"]),
])