Files
hive/core/framework/graph/prompt_composer.py
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2026-03-19 15:24:12 -07:00

374 lines
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Python

"""Prompt composition for continuous agent mode.
Composes the three-layer system prompt (onion model) and generates
transition markers inserted into the conversation at phase boundaries.
Layer 1 — Identity (static, defined at agent level, never changes):
"You are a thorough research agent. You prefer clarity over jargon..."
Layer 2 — Narrative (auto-generated from conversation/memory state):
"We've finished scoping the project. The user wants to focus on..."
Layer 3 — Focus (per-node system_prompt, reframed as focus directive):
"Your current attention: synthesize findings into a report..."
"""
from __future__ import annotations
import logging
from datetime import datetime
from pathlib import Path
from typing import TYPE_CHECKING, Any
if TYPE_CHECKING:
from framework.graph.edge import GraphSpec
from framework.graph.node import NodeSpec, SharedMemory
logger = logging.getLogger(__name__)
# Injected into every worker node's system prompt so the LLM understands
# it is one step in a multi-node pipeline and should not overreach.
EXECUTION_SCOPE_PREAMBLE = (
"EXECUTION SCOPE: You are one node in a multi-step workflow graph. "
"Focus ONLY on the task described in your instructions below. "
"Call set_output() for each of your declared output keys, then stop. "
"Do NOT attempt work that belongs to other nodes — the framework "
"routes data between nodes automatically."
)
def _with_datetime(prompt: str) -> str:
"""Append current datetime with local timezone to a system prompt."""
local = datetime.now().astimezone()
stamp = f"Current date and time: {local.strftime('%Y-%m-%d %H:%M %Z (UTC%z)')}"
return f"{prompt}\n\n{stamp}" if prompt else stamp
def build_accounts_prompt(
accounts: list[dict[str, Any]],
tool_provider_map: dict[str, str] | None = None,
node_tool_names: list[str] | None = None,
) -> str:
"""Build a prompt section describing connected accounts.
When tool_provider_map is provided, produces structured output grouped
by provider with tool mapping, so the LLM knows which ``account`` value
to pass to which tool.
When node_tool_names is also provided, filters to only show providers
whose tools overlap with the node's tool list.
Args:
accounts: List of account info dicts from
CredentialStoreAdapter.get_all_account_info().
tool_provider_map: Mapping of tool_name -> provider_name
(e.g. {"gmail_list_messages": "google"}).
node_tool_names: Tool names available to the current node.
When provided, only providers with matching tools are shown.
Returns:
Formatted accounts block, or empty string if no accounts.
"""
if not accounts:
return ""
# Flat format (backward compat) when no tool mapping provided
if tool_provider_map is None:
lines = [
"Connected accounts (use the alias as the `account` parameter "
"when calling tools to target a specific account):"
]
for acct in accounts:
provider = acct.get("provider", "unknown")
alias = acct.get("alias", "unknown")
identity = acct.get("identity", {})
detail_parts = [f"{k}: {v}" for k, v in identity.items() if v]
detail = f" ({', '.join(detail_parts)})" if detail_parts else ""
lines.append(f"- {provider}/{alias}{detail}")
return "\n".join(lines)
# --- Structured format: group by provider with tool mapping ---
# Invert tool_provider_map to provider -> [tools]
provider_tools: dict[str, list[str]] = {}
for tool_name, provider in tool_provider_map.items():
provider_tools.setdefault(provider, []).append(tool_name)
# Filter to relevant providers based on node tools
node_tool_set = set(node_tool_names) if node_tool_names else None
# Group accounts by provider
provider_accounts: dict[str, list[dict[str, Any]]] = {}
for acct in accounts:
provider = acct.get("provider", "unknown")
provider_accounts.setdefault(provider, []).append(acct)
sections: list[str] = ["Connected accounts:"]
for provider, acct_list in provider_accounts.items():
tools_for_provider = sorted(provider_tools.get(provider, []))
# If node tools specified, only show providers with overlapping tools
if node_tool_set is not None:
relevant_tools = [t for t in tools_for_provider if t in node_tool_set]
if not relevant_tools:
continue
tools_for_provider = relevant_tools
# Local-only providers: tools read from env vars, no account= routing
all_local = all(a.get("source") == "local" for a in acct_list)
# Provider header with tools
display_name = provider.replace("_", " ").title()
if tools_for_provider and not all_local:
tools_str = ", ".join(tools_for_provider)
sections.append(f'\n{display_name} (use account="<alias>" with: {tools_str}):')
elif tools_for_provider and all_local:
tools_str = ", ".join(tools_for_provider)
sections.append(f"\n{display_name} (tools: {tools_str}):")
else:
sections.append(f"\n{display_name}:")
# Account entries
for acct in acct_list:
alias = acct.get("alias", "unknown")
identity = acct.get("identity", {})
detail_parts = [f"{k}: {v}" for k, v in identity.items() if v]
detail = f" ({', '.join(detail_parts)})" if detail_parts else ""
source_tag = " [local]" if acct.get("source") == "local" else ""
sections.append(f" - {provider}/{alias}{detail}{source_tag}")
# If filtering removed all providers, return empty
if len(sections) <= 1:
return ""
return "\n".join(sections)
def compose_system_prompt(
identity_prompt: str | None,
focus_prompt: str | None,
narrative: str | None = None,
accounts_prompt: str | None = None,
skills_catalog_prompt: str | None = None,
protocols_prompt: str | None = None,
execution_preamble: str | None = None,
node_type_preamble: str | None = None,
) -> str:
"""Compose the multi-layer system prompt.
Args:
identity_prompt: Layer 1 — static agent identity (from GraphSpec).
focus_prompt: Layer 3 — per-node focus directive (from NodeSpec.system_prompt).
narrative: Layer 2 — auto-generated from conversation state.
accounts_prompt: Connected accounts block (sits between identity and narrative).
skills_catalog_prompt: Available skills catalog XML (Agent Skills standard).
protocols_prompt: Default skill operational protocols section.
execution_preamble: EXECUTION_SCOPE_PREAMBLE for worker nodes
(prepended before focus so the LLM knows its pipeline scope).
node_type_preamble: Node-type-specific preamble, e.g. GCU browser
best-practices prompt (prepended before focus).
Returns:
Composed system prompt with all layers present, plus current datetime.
"""
parts: list[str] = []
# Layer 1: Identity (always first, anchors the personality)
if identity_prompt:
parts.append(identity_prompt)
# Accounts (semi-static, deployment-specific)
if accounts_prompt:
parts.append(f"\n{accounts_prompt}")
# Skills catalog (discovered skills available for activation)
if skills_catalog_prompt:
parts.append(f"\n{skills_catalog_prompt}")
# Operational protocols (default skill behavioral guidance)
if protocols_prompt:
parts.append(f"\n{protocols_prompt}")
# Layer 2: Narrative (what's happened so far)
if narrative:
parts.append(f"\n--- Context (what has happened so far) ---\n{narrative}")
# Execution scope preamble (worker nodes — tells the LLM it is one
# step in a multi-node pipeline and should not overreach)
if execution_preamble:
parts.append(f"\n{execution_preamble}")
# Node-type preamble (e.g. GCU browser best-practices)
if node_type_preamble:
parts.append(f"\n{node_type_preamble}")
# Layer 3: Focus (current phase directive)
if focus_prompt:
parts.append(f"\n--- Current Focus ---\n{focus_prompt}")
return _with_datetime("\n".join(parts) if parts else "")
def build_narrative(
memory: SharedMemory,
execution_path: list[str],
graph: GraphSpec,
) -> str:
"""Build Layer 2 (narrative) from structured state.
Deterministic — no LLM call. Reads SharedMemory and execution path
to describe what has happened so far. Cheap and fast.
Args:
memory: Current shared memory state.
execution_path: List of node IDs visited so far.
graph: Graph spec (for node names/descriptions).
Returns:
Narrative string describing the session state.
"""
parts: list[str] = []
# Describe execution path
if execution_path:
phase_descriptions: list[str] = []
for node_id in execution_path:
node_spec = graph.get_node(node_id)
if node_spec:
phase_descriptions.append(f"- {node_spec.name}: {node_spec.description}")
else:
phase_descriptions.append(f"- {node_id}")
parts.append("Phases completed:\n" + "\n".join(phase_descriptions))
# Describe key memory values (skip very long values)
all_memory = memory.read_all()
if all_memory:
memory_lines: list[str] = []
for key, value in all_memory.items():
if value is None:
continue
val_str = str(value)
if len(val_str) > 200:
val_str = val_str[:200] + "..."
memory_lines.append(f"- {key}: {val_str}")
if memory_lines:
parts.append("Current state:\n" + "\n".join(memory_lines))
return "\n\n".join(parts) if parts else ""
def build_transition_marker(
previous_node: NodeSpec,
next_node: NodeSpec,
memory: SharedMemory,
cumulative_tool_names: list[str],
data_dir: Path | str | None = None,
adapt_content: str | None = None,
) -> str:
"""Build a 'State of the World' transition marker.
Inserted into the conversation as a user message at phase boundaries.
Gives the LLM full situational awareness: what happened, what's stored,
what tools are available, and what to focus on next.
Args:
previous_node: NodeSpec of the phase just completed.
next_node: NodeSpec of the phase about to start.
memory: Current shared memory state.
cumulative_tool_names: All tools available (cumulative set).
data_dir: Path to spillover data directory.
adapt_content: Agent working memory (adapt.md) content.
Returns:
Transition marker message text.
"""
sections: list[str] = []
# Header
sections.append(f"--- PHASE TRANSITION: {previous_node.name}{next_node.name} ---")
# What just completed
sections.append(f"\nCompleted: {previous_node.name}")
sections.append(f" {previous_node.description}")
# Outputs in memory — use file references for large values so the
# next node loads full data from disk instead of seeing truncated
# inline previews that look deceptively complete.
all_memory = memory.read_all()
if all_memory:
memory_lines: list[str] = []
for key, value in all_memory.items():
if value is None:
continue
val_str = str(value)
if len(val_str) > 300 and data_dir:
# Auto-spill large transition values to data files
import json as _json
data_path = Path(data_dir)
data_path.mkdir(parents=True, exist_ok=True)
ext = ".json" if isinstance(value, (dict, list)) else ".txt"
filename = f"output_{key}{ext}"
try:
write_content = (
_json.dumps(value, indent=2, ensure_ascii=False)
if isinstance(value, (dict, list))
else str(value)
)
(data_path / filename).write_text(write_content, encoding="utf-8")
file_size = (data_path / filename).stat().st_size
val_str = (
f"[Saved to '{filename}' ({file_size:,} bytes). "
f"Use load_data(filename='{filename}') to access.]"
)
except Exception:
val_str = val_str[:300] + "..."
elif len(val_str) > 300:
val_str = val_str[:300] + "..."
memory_lines.append(f" {key}: {val_str}")
if memory_lines:
sections.append("\nOutputs available:\n" + "\n".join(memory_lines))
# Files in data directory
if data_dir:
data_path = Path(data_dir)
if data_path.exists():
files = sorted(data_path.iterdir())
if files:
file_lines = [
f" {f.name} ({f.stat().st_size:,} bytes)" for f in files if f.is_file()
]
if file_lines:
sections.append(
"\nData files (use load_data to access):\n" + "\n".join(file_lines)
)
# Agent working memory
if adapt_content:
sections.append(f"\n--- Agent Memory ---\n{adapt_content}")
# Available tools
if cumulative_tool_names:
sections.append("\nAvailable tools: " + ", ".join(sorted(cumulative_tool_names)))
# Next phase
sections.append(f"\nNow entering: {next_node.name}")
sections.append(f" {next_node.description}")
if next_node.output_keys:
sections.append(
f"\nYour ONLY job in this phase: complete the task above and call "
f"set_output() for {next_node.output_keys}. Do NOT do work that "
f"belongs to later phases."
)
# Reflection prompt (engineered metacognition)
sections.append(
"\nBefore proceeding, briefly reflect: what went well in the "
"previous phase? Are there any gaps or surprises worth noting?"
)
sections.append("\n--- END TRANSITION ---")
return "\n".join(sections)