weavegraph 0.3.0

Graph-driven, concurrent agent workflow framework with versioned state, deterministic barrier merges, and rich diagnostics.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "https://github.com/Idleness76/weavegraph/schemas/event.json",
    "title": "Weavegraph Event",
    "description": "Normalized JSON schema for Weavegraph event system. All events follow this consistent structure regardless of variant type.",
    "type": "object",
    "required": [
        "type",
        "scope",
        "message",
        "timestamp",
        "metadata"
    ],
    "properties": {
        "type": {
            "type": "string",
            "enum": [
                "node",
                "diagnostic",
                "llm"
            ],
            "description": "Event variant type"
        },
        "scope": {
            "type": "string",
            "description": "Event scope label for categorization and filtering"
        },
        "message": {
            "type": "string",
            "description": "Primary message content of the event"
        },
        "timestamp": {
            "type": "string",
            "format": "date-time",
            "description": "ISO 8601 timestamp (RFC 3339 format)"
        },
        "metadata": {
            "type": "object",
            "description": "Variant-specific metadata fields",
            "additionalProperties": true
        }
    },
    "oneOf": [
        {
            "description": "Node event - represents workflow node execution",
            "properties": {
                "type": {
                    "const": "node"
                },
                "metadata": {
                    "type": "object",
                    "properties": {
                        "node_id": {
                            "type": "string",
                            "description": "Unique identifier for the node"
                        },
                        "step": {
                            "type": "integer",
                            "minimum": 0,
                            "description": "Execution step number"
                        }
                    },
                    "additionalProperties": false
                }
            }
        },
        {
            "description": "Diagnostic event - system messages and health checks",
            "properties": {
                "type": {
                    "const": "diagnostic"
                },
                "metadata": {
                    "type": "object",
                    "properties": {},
                    "additionalProperties": false,
                    "description": "Diagnostic events have empty metadata"
                }
            }
        },
        {
            "description": "LLM streaming event - language model token streaming",
            "properties": {
                "type": {
                    "const": "llm"
                },
                "metadata": {
                    "type": "object",
                    "required": [
                        "is_final"
                    ],
                    "properties": {
                        "session_id": {
                            "type": "string",
                            "description": "Session identifier for correlation"
                        },
                        "node_id": {
                            "type": "string",
                            "description": "Node that generated the LLM event"
                        },
                        "stream_id": {
                            "type": "string",
                            "description": "Stream identifier for this token sequence"
                        },
                        "is_final": {
                            "type": "boolean",
                            "description": "Whether this is the final chunk in the stream"
                        }
                    },
                    "additionalProperties": true,
                    "description": "LLM events may include custom metadata fields (model, temperature, etc.)"
                }
            }
        }
    ],
    "examples": [
        {
            "type": "node",
            "scope": "routing",
            "message": "Processing request",
            "timestamp": "2025-11-03T21:27:44.570521192+00:00",
            "metadata": {
                "node_id": "router",
                "step": 5
            }
        },
        {
            "type": "diagnostic",
            "scope": "system",
            "message": "Service ready",
            "timestamp": "2025-11-03T21:27:44.570486117+00:00",
            "metadata": {}
        },
        {
            "type": "llm",
            "scope": "chunk",
            "message": "Hello, world!",
            "timestamp": "2025-11-03T21:27:44.570358839+00:00",
            "metadata": {
                "session_id": "session-123",
                "node_id": "node-abc",
                "stream_id": "stream-xyz",
                "is_final": false,
                "model": "gpt-4",
                "temperature": 0.7
            }
        }
    ]
}