agent-topology-spec

Validate, canonicalize, and hash agent-topology JSON documents in Python 3.11–3.14. This package has no framework dependency and does not install a CLI.

python -m pip install "agent-topology-spec==0.1.0b2"

import json
from pathlib import Path

from agent_topology.spec import compute_structure_hash, validate_document

document = json.loads(Path("topology.json").read_text(encoding="utf-8"))
errors = validate_document(document)
if errors:
    raise ValueError("\n".join(errors))
print(compute_structure_hash(document))
print(document["completeness"])
print(document["producerLimitations"])

Validation checks schema, references, and completeness; it does not verify the recorded hash. canonical_json serializes canonical JSON; finalize_document recomputes the hash and returns a canonical copy. These utilities do not mutate their input or validate it automatically.

To derive documents from compiled Python LangGraph graphs, install agent-topology-langgraph instead. Its specification dependency is installed automatically.

The 0.1 format is provisional. Package versions, document format versions, and hash algorithm versions are independent.

Documentation · Consumer guide · Source and issues

Licensed under the MIT License; see the included LICENSE file.

Join connections (unreleased)

Current source exports derived_join_edges(structure); published beta.2 does not.

from agent_topology.spec import derived_join_edges

# After validate_document(document) succeeds:
links = derived_join_edges(document["graphs"][0]["structure"])

The helper returns one fresh {joinId, source, target} record per join source, sorted first by joinId, then by source, using lexicographic Unicode code point order (shorter prefixes first, without normalization or locale collation). Empty joins produce an empty list. Input objects and arrays are not mutated.

Consumers must read both structure.edges and structure.joins. Derived links retain their join identity even when endpoints coincide with another join or a direct edge. They describe the original join's AND convergence: all its sources are required. They do not imply independent edge execution. Keep them separate from ordinary edges; no ordinary edge id or kind is assigned. Validate the containing document at the input boundary; the helper does not validate again.