Matrix threads in the transport (M2.1, PR A) #96

2026-10-02T23:40:24Z

dev-agent commented

2026-10-02 23:40:24 +00:00

M2.1, PR A of 4: Matrix threads in the transport (architecture L5: each work item's conversation is a thread).

Changes

Transport.post(text, *, thread=None) -> event_id. A top-level post's ID can root a thread. A threaded post carries m.relates_to: {rel_type: m.thread, event_id: root}, plus the standard reply fallback, so clients without thread support still show it as a reply.
InboundMessage gains event_id and thread, the root, or None at top level.
- A message in a thread gives its root.
- A plain reply from a client without threads joins the thread of the message it replies to, when the transport knows it: one it sent, or one it has seen. It remembers the last 2,000 events.
- A rich reply's quoted lines (> <@x> …) are stripped from the text: they aren't what the sender said.
InMemoryTransport plays threads: post returns IDs, and receive(..., thread=).
Unchanged: send_message and friends stay for the old loop, now built on post. The old loop ignores threads.

Tests

Unit:
- a threaded post's relation;
- a threaded message's root;
- plain replies joining threads, with the quote stripped;
- a reply to an unknown message staying at top level;
- a reply to the operator's own threaded message;
- the in-memory fake.
Live, test_matrix_live: the homeserver accepts the relation and lists the reply under its root, through the v1 relations API.

559 unit and 20 integration tests pass.

🤖 Generated with Claude Code

https://claude.ai/code/session_01PPQ14L3LikyefCMFBqEbKE

M2.1, **PR A of 4: Matrix threads in the transport** (architecture L5: each work item's conversation is a thread). ## Changes - **`Transport.post(text, *, thread=None) -> event_id`.** A top-level post's ID can root a thread. A threaded post carries `m.relates_to: {rel_type: m.thread, event_id: root}`, plus the standard reply fallback, so clients without thread support still show it as a reply. - **`InboundMessage`** gains `event_id` and `thread`, the root, or None at top level. - **A message in a thread** gives its root. - **A plain reply** from a client without threads joins the thread of the message it replies to, when the transport knows it: one it sent, or one it has seen. It remembers the last 2,000 events. - **A rich reply's quoted lines** (`> <@x> …`) are stripped from the text: they aren't what the sender said. - **`InMemoryTransport`** plays threads: `post` returns IDs, and `receive(..., thread=)`. - **Unchanged:** `send_message` and friends stay for the old loop, now built on `post`. The old loop ignores threads. ## Tests - **Unit:** - a threaded post's relation; - a threaded message's root; - plain replies joining threads, with the quote stripped; - a reply to an unknown message staying at top level; - a reply to the operator's own threaded message; - the in-memory fake. - **Live, `test_matrix_live`:** the homeserver accepts the relation and lists the reply under its root, through the v1 relations API. 559 unit and 20 integration tests pass. 🤖 Generated with [Claude Code](https://claude.com/claude-code) https://claude.ai/code/session_01PPQ14L3LikyefCMFBqEbKE

dev-agent added 1 commit 2026-10-02 23:40:25 +00:00

Matrix threads in the transport (M2.1, PR A)

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Details

6dff36f458

Transport.post(text, thread=...) returns the event ID, which can root a
thread; a threaded post carries m.thread with the reply fallback for
clients without threads. Inbound messages carry their event ID and thread
root: a message in a thread gives its root, a plain reply joins the
thread of the message it replies to when known, and the quoted lines of a
rich reply are no longer part of the text. The in-memory transport plays
threads for tests.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPQ14L3LikyefCMFBqEbKE

dev-agent referenced this pull request

2026-10-02 23:46:42 +00:00

The new loop's core: intake, restatement, go-ahead, threads (M2.1, PR B) #97

dongar approved these changes

2026-10-03 16:42:36 +00:00

dongar merged commit 64273557d3 into main

2026-10-03 16:42:40 +00:00

dongar deleted branch matrix-threads

2026-10-03 16:42:40 +00:00

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