Contract Redline LangGraph
blueprint · 4 agents · 3 MCP servers
1124★ stars
146forks
4.7rating
What it does
A reader opens the contract from the drive and extracts its clauses. A redliner proposes edits that move off-standard terms toward the company's negotiation playbook (read from disk), and a reviewer checks each edit against that playbook and flags residual risk. The two loop until the reviewer signs off or the round budget is reached. A risk memo is produced and the package pauses for a human lawyer to approve before it is shared. Replace the playbook file with your own standard positions.
The cast · 4 agents
Readerreaderfast
Open the contract and extract its clauses: label each by type (liability, term, indemnity, IP, payment, etc.) and capture its exact text. Do not judge yet.
docs.read_doc
Redlinerredlinerreasoning
Read the negotiation playbook from disk. Propose the minimal edits that bring off-standard clauses in line with it, quoting the exact replacement text. If you received a review, address every flag and try again. Never soften a position the playbook marks non-negotiable.
fs.read_file
Reviewerreviewerreasoning
Check the redline against the playbook. Flag any clause still off-standard, any edit that overreaches, and any risk a counterparty would reject. Return an object with a 'clean' boolean and specific notes. Sign off only when the redline is defensible and complete.
no tools · reasoning only
Memo WritermemoWriterfast
Write a short risk memo for the reviewing lawyer: what was changed, what still carries risk, and what to watch in negotiation. Post a pointer to the legal channel. Do not send anything to the counterparty.
chat.post_message
Flow
→ Reader → clauses
↻ loop until review.clean == true · max 3
→ Redliner → draft
→ Reviewer → review
→ Memo Writer → redline
→ ask → redline
Interface
Inputs
contractRefstring
The contract to review, as a drive document id or path.
Outputs
redlinestring
The approved redline and risk memo, ready for a human to send.
Depends on · 3 MCP servers
Multi-account MCP for Gmail, Calendar, Drive, Docs, and Sheets — 61 tools, tokenio.github.adelaidasofia/google-workspace-mcpdocsAVerified
io.github.modelcontextprotocol/filesystemnot in the registry yetfs
io.github.slack/slack-mcpnot in the registry yetchat⤓ Export runnable code
# Generated by @socketcat/compiler for target: langgraph
# blueprint: com.socketcat/contract-redline v1.0.0 schema: socketcat.dev/blueprint/v0
# This code is yours. Edit it freely. The socketcat_runtime helper is optional and can be vendored.
from typing import TypedDict
from langgraph.graph import StateGraph, START, END
import socketcat_runtime as _rt
class State(TypedDict, total=False):
contractRef: object
redline: object
clauses: object
__loop_1: object
draft: object
review: object
def node_AgentInvoke_0(state):
return _rt.run_agent("reader", state, {"contractRef":"contractRef"}, "clauses")
def node_LoopHeader_1(state):
return {}
def node_LoopTick_2(state):
return {"__loop_1": state.get("__loop_1", 0) + 1}
def node_Nop_3(state):
return {}
def node_AgentInvoke_4(state):
return _rt.run_agent("redliner", state, {"review":"review","clauses":"clauses"}, "draft")
def node_AgentInvoke_5(state):
return _rt.run_agent("reviewer", state, {"draft":"draft"}, "review")
def node_AgentInvoke_6(state):
return _rt.run_agent("memoWriter", state, {"draft":"draft"}, "redline")
def node_Ask_7(state):
return _rt.run_ask("Review the redline and risk memo. Approve to share with the counterparty, or send back with notes.", state, "redline")
def route_LoopHeader_1(state):
count = state.get("__loop_1", 0)
return "exit" if (_rt.cond("review.clean == true", state) or count >= 3) else "loop"
def build():
b = StateGraph(State)
b.add_node("AgentInvoke_0", node_AgentInvoke_0)
b.add_node("LoopHeader_1", node_LoopHeader_1)
b.add_node("LoopTick_2", node_LoopTick_2)
b.add_node("Nop_3", node_Nop_3)
b.add_node("AgentInvoke_4", node_AgentInvoke_4)
b.add_node("AgentInvoke_5", node_AgentInvoke_5)
b.add_node("AgentInvoke_6", node_AgentInvoke_6)
b.add_node("Ask_7", node_Ask_7)
b.add_edge(START, "AgentInvoke_0")
b.add_edge("AgentInvoke_0", "AgentInvoke_4")
b.add_conditional_edges("LoopHeader_1", route_LoopHeader_1, {"loop": "AgentInvoke_4", "exit": "Nop_3"})
b.add_edge("LoopTick_2", "LoopHeader_1")
b.add_edge("Nop_3", "AgentInvoke_6")
b.add_edge("AgentInvoke_4", "AgentInvoke_5")
b.add_edge("AgentInvoke_5", "LoopTick_2")
b.add_edge("AgentInvoke_6", "Ask_7")
b.add_edge("Ask_7", END)
return b.compile()
INPUTS = ["contractRef"]
OUTPUTS = ["redline"]
if __name__ == "__main__":
_rt.main(build, INPUTS, OUTPUTS)
▸blueprint.json (the portable format)
{
"id": "com.socketcat/contract-redline",
"flow": {
"type": "sequence",
"blocks": [
{
"in": {
"contractRef": "contractRef"
},
"out": "clauses",
"use": "reader",
"type": "agent"
},
{
"max": 3,
"type": "loop",
"until": "review.clean == true",
"blocks": [
{
"in": {
"review": "review",
"clauses": "clauses"
},
"out": "draft",
"use": "redliner",
"type": "agent"
},
{
"in": {
"draft": "draft"
},
"out": "review",
"use": "reviewer",
"type": "agent"
}
]
},
{
"in": {
"draft": "draft"
},
"out": "redline",
"use": "memoWriter",
"type": "agent"
},
{
"out": "redline",
"type": "ask",
"prompt": "Review the redline and risk memo. Approve to share with the counterparty, or send back with notes."
}
]
},
"tags": [
"legal",
"contracts",
"evaluator-optimizer",
"human-in-the-loop"
],
"title": "Contract Redline",
"agents": {
"reader": {
"model": {
"hint": "fast"
},
"title": "Reader",
"tools": [
"docs.read_doc"
],
"instructions": "Open the contract and extract its clauses: label each by type (liability, term, indemnity, IP, payment, etc.) and capture its exact text. Do not judge yet."
},
"redliner": {
"model": {
"hint": "reasoning"
},
"title": "Redliner",
"tools": [
"fs.read_file"
],
"instructions": "Read the negotiation playbook from disk. Propose the minimal edits that bring off-standard clauses in line with it, quoting the exact replacement text. If you received a review, address every flag and try again. Never soften a position the playbook marks non-negotiable."
},
"reviewer": {
"model": {
"hint": "reasoning"
},
"title": "Reviewer",
"output": {
"type": "object",
"required": [
"clean"
],
"properties": {
"clean": {
"type": "boolean"
},
"notes": {
"type": "string"
}
}
},
"instructions": "Check the redline against the playbook. Flag any clause still off-standard, any edit that overreaches, and any risk a counterparty would reject. Return an object with a 'clean' boolean and specific notes. Sign off only when the redline is defensible and complete."
},
"memoWriter": {
"model": {
"hint": "fast"
},
"title": "Memo Writer",
"tools": [
"chat.post_message"
],
"instructions": "Write a short risk memo for the reviewing lawyer: what was changed, what still carries risk, and what to watch in negotiation. Post a pointer to the legal channel. Do not send anything to the counterparty."
}
},
"estate": {
"draft": {
"type": "object",
"description": "The redliner's current proposed edits."
},
"review": {
"type": "object",
"description": "The reviewer's verdict, including a 'clean' flag."
},
"clauses": {
"type": "array",
"description": "The extracted clauses with their text and type."
}
},
"$schema": "socketcat.dev/blueprint/v0",
"authors": [
{
"url": "https://socketcat.com",
"name": "SocketCat"
}
],
"license": "MIT",
"servers": [
{
"ref": "io.github.adelaidasofia/google-workspace-mcp",
"alias": "docs"
},
{
"ref": "io.github.modelcontextprotocol/filesystem",
"alias": "fs"
},
{
"ref": "io.github.slack/slack-mcp",
"alias": "chat"
}
],
"summary": "Extracts contract clauses, redlines them against your playbook in a review loop, and pauses for a lawyer to approve.",
"targets": [
"langgraph",
"*"
],
"version": "1.0.0",
"interface": {
"inputs": {
"contractRef": {
"type": "string",
"description": "The contract to review, as a drive document id or path."
}
},
"outputs": {
"redline": {
"type": "string",
"description": "The approved redline and risk memo, ready for a human to send."
}
}
},
"extensions": {
"dev.langgraph": {
"checkpointer": "memory"
}
},
"description": "A reader opens the contract from the drive and extracts its clauses. A redliner proposes edits that move off-standard terms toward the company's negotiation playbook (read from disk), and a reviewer checks each edit against that playbook and flags residual risk. The two loop until the reviewer signs off or the round budget is reached. A risk memo is produced and the package pauses for a human lawyer to approve before it is shared. Replace the playbook file with your own standard positions."
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