Agent skill

migrate-honcho

Migrates Honcho Python SDK code from v1.6.0 to v2.1.1. Use when upgrading honcho package, fixing breaking changes after upgrade, or when errors mention AsyncHoncho, observations, Representation class, .core property, or get_config methods.

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npx add-skill https://github.com/plastic-labs/honcho/tree/main/.claude/skills/migrate-honcho-py

SKILL.md

Honcho Python SDK Migration (v1.6.0 → v2.1.1)

Overview

This skill migrates code from honcho Python SDK v1.6.0 to v2.1.1 (required for Honcho 3.0.0+).

Key breaking changes:

  • AsyncHoncho/AsyncPeer/AsyncSession removed → use .aio accessor
  • "Observation" → "Conclusion" terminology
  • Representation class removed (returns str now)
  • get_config/set_config → get_configuration/set_configuration
  • Streaming via chat_stream() instead of chat(stream=True)
  • poll_deriver_status() removed
  • .core property removed

Quick Migration

1. Update async architecture

python
# Before
from honcho import AsyncHoncho, AsyncPeer, AsyncSession

async_client = AsyncHoncho()
peer = await async_client.peer("user-123")
response = await peer.chat("query")

# After
from honcho import Honcho

client = Honcho()
peer = await client.aio.peer("user-123")
response = await peer.aio.chat("query")

# Async iteration
async for p in client.aio.peers():
    print(p.id)

2. Replace observations with conclusions

python
# Before
from honcho import Observation, ObservationScope, AsyncObservationScope

scope = peer.observations
scope = peer.observations_of("other-peer")
rep = scope.get_representation()

# After
from honcho import Conclusion, ConclusionScope, ConclusionScopeAio

scope = peer.conclusions
scope = peer.conclusions_of("other-peer")
rep = scope.representation()  # Returns str

3. Update representation handling

python
# Before
from honcho import Representation, ExplicitObservation, DeductiveObservation

rep: Representation = peer.working_rep()
print(rep.explicit)
print(rep.deductive)
if rep.is_empty():
    print("No observations")

# After
rep: str = peer.representation()
print(rep)  # Just a string now
if not rep:
    print("No conclusions")

4. Rename configuration methods

python
# Before
config = peer.get_config()
peer.set_config({"observe_me": False})
session.get_config()
client.get_config()

# After
from honcho.api_types import PeerConfig, SessionConfiguration, WorkspaceConfiguration

config = peer.get_configuration()
peer.set_configuration(PeerConfig(observe_me=False))
session.get_configuration()
client.get_configuration()

5. Update method names

python
# Before
peer.working_rep()
peer.get_context()
peer.get_sessions()
session.get_context()
session.get_summaries()
session.get_messages()
session.get_peers()
session.get_peer_config()
client.get_peers()
client.get_sessions()
client.get_workspaces()

# After
peer.representation()
peer.context()
peer.sessions()
session.context()
session.summaries()
session.messages()
session.peers()
session.get_peer_configuration()
client.peers()
client.sessions()
client.workspaces()

6. Update streaming

python
# Before
response = peer.chat("query", stream=True)
for chunk in response:
    print(chunk, end="")

# After
stream = peer.chat_stream("query")
for chunk in stream:
    print(chunk, end="")

7. Update queue status (formerly deriver)

python
# Before
from honcho_core.types import DeriverStatus

status = client.get_deriver_status()
status = client.poll_deriver_status(timeout=300.0)  # Removed!

# After
from honcho.api_types import QueueStatusResponse

status = client.queue_status()
# poll_deriver_status removed - implement polling manually if needed

8. Update representation parameters

python
# Before
rep = peer.working_rep(
    include_most_derived=True,
    max_observations=50
)

# After
rep = peer.representation(
    include_most_frequent=True,
    max_conclusions=50
)

9. Move update_message to session

python
# Before
updated = client.update_message(message=msg, metadata={"key": "value"}, session="sess-id")

# After
updated = session.update_message(message=msg, metadata={"key": "value"})

10. Update card() return type and method name

python
# Before
card: str = peer.card()  # Returns str

# After (v2.0.0+)
card: list[str] | None = peer.get_card()  # Returns list[str] | None
if card:
    print("\n".join(card))

# peer.card() still works but is deprecated — use get_card()

# New in v2.0.1: set_card()
peer.set_card(["Prefers dark mode", "Located in US"])

11. Strict input validation (v2.0.2+)

All input models now reject unknown fields via extra="forbid" Pydantic validation. Previously, misspelled or extraneous fields were silently ignored.

python
# Before (v2.0.1 and earlier) — silently ignored
peer = client.peer("user-1", configuration=PeerConfig(observe_mee=True))  # typo silently ignored

# After (v2.0.2+) — raises ValidationError
peer = client.peer("user-1", configuration=PeerConfig(observe_mee=True))  # ValidationError!

12. peer() and session() always make API calls (v2.1.0+)

Breaking: peer() and session() now always make a get-or-create API call. Previously, calling without metadata/configuration returned a lazy object with no API call.

python
# Before (v2.0.x) — no API call without options
peer = client.peer("user-123")  # Lazy, no network request

# After (v2.1.0+) — always hits the API
peer = client.peer("user-123")  # Makes POST to /peers (get-or-create)

# Async
peer = await client.aio.peer("user-123")  # Also always hits API

13. New properties and methods (v2.1.0+)

python
# created_at on Peer and Session
peer = client.peer("user-123")
print(peer.created_at)  # datetime | None

session = client.session("sess-1")
print(session.created_at)  # datetime | None

# is_active on Session
print(session.is_active)  # bool | None

# get_message() on Session
msg = session.get_message("msg-id")
# Async: msg = await session.aio.get_message("msg-id")

14. Pagination parameters on list methods (v2.1.0+)

All list methods now accept page, size, and reverse parameters:

python
# Before (v2.0.x) — only filters
peers_page = client.peers(filters={"metadata": {"role": "admin"}})

# After (v2.1.0+) — pagination controls
peers_page = client.peers(
    filters={"metadata": {"role": "admin"}},
    page=2,
    size=25,
    reverse=True
)

# Works on: client.peers(), client.sessions(), peer.sessions(),
# session.messages(), scope.list()

15. Broader HTTP retry logic (v2.1.1+)

The SDK now retries on httpx.TimeoutException, httpx.NetworkError, and httpx.RemoteProtocolError (previously only httpx.TimeoutException and httpx.ConnectError). These are mapped to the SDK's TimeoutError and ConnectionError respectively. No code changes needed — this is transparent.

Quick Reference Table

v1.6.0 v2.0.0
AsyncHoncho() Honcho() + .aio accessor
AsyncPeer Peer + .aio accessor
AsyncSession Session + .aio accessor
Observation Conclusion
ObservationScope ConclusionScope
AsyncObservationScope ConclusionScopeAio
Representation str
.observations .conclusions
.observations_of() .conclusions_of()
.get_config() .get_configuration()
.set_config() .set_configuration()
.working_rep() .representation()
.get_context() .context()
.get_sessions() .sessions()
.get_peers() .peers()
.get_messages() .messages()
.get_summaries() .summaries()
.get_deriver_status() .queue_status()
.poll_deriver_status() (removed)
.get_peer_config() .get_peer_configuration()
.set_peer_config() .set_peer_configuration()
client.update_message() session.update_message()
peer.card() peer.get_card() (card() deprecated)
(new) peer.set_card(list[str])
chat(stream=True) chat_stream()
include_most_derived= include_most_frequent=
max_observations= max_conclusions=
last_user_message= search_query=
config= configuration=
PeerContext PeerContextResponse
DeriverStatus QueueStatusResponse
client.core (removed)
(new v2.1.0) peer.created_at / session.created_at
(new v2.1.0) session.is_active
(new v2.1.0) session.get_message(id)
(new v2.1.0) page=, size=, reverse= on list methods

Detailed Reference

For comprehensive details on each change, see:

  • DETAILED-CHANGES.md - Full API change documentation
  • MIGRATION-CHECKLIST.md - Step-by-step checklist

New Exception Types

python
from honcho import (
    HonchoError,
    APIError,
    BadRequestError,
    AuthenticationError,
    PermissionDeniedError,
    NotFoundError,
    ConflictError,
    UnprocessableEntityError,
    RateLimitError,
    ServerError,
    TimeoutError,
    ConnectionError,
)

New Import Locations

python
# Configuration types
from honcho.api_types import (
    PeerConfig,
    SessionConfiguration,
    WorkspaceConfiguration,
    SessionPeerConfig,
    QueueStatusResponse,
    PeerContextResponse,
)

# Async type hints
from honcho import HonchoAio, PeerAio, SessionAio

# Message types (note: Params is plural now)
from honcho import Message, MessageCreateParams

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