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Add the headless agent session, providers, and RPC #5

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weichen merged 6 commits from feature/pi-headless into main 2026-10-01 10:30:41 +00:00
Conversation 0 Commits 6 Files Changed 32
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6 Commits
Author SHA1 Message Date
weichenandCursor 6b7d2432b3 Serve print, JSON, and RPC modes on AgentSession
ci / vet-and-test (pull_request) Failing after 2s
Details
ci / docker-checkout-hostgateway (pull_request) Successful in 2s
Details 
Why: The library had no process entry, and the product backend still called the loop directly.
Evidence: go test -count=1 ./...
Impact: exec.Backend keeps the same request and result. Execute now goes through AgentSession. Extensions and packages are not a sandbox.
Refs: feature/pi-headless N6 N7
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-01 10:16:00 +00:00
weichenandCursor 23b5e3f336 Add an extension process protocol and package manager 
Why: Tools, hooks, and providers need a way in without a Go rebuild, and packages need install, update, and removal.
Evidence: go test -count=1 ./runtime/ext/
Impact: Extensions run as subprocesses with the caller's privileges. They are not a sandbox.
Refs: feature/pi-headless N5
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-01 10:13:48 +00:00
weichenandCursor dfd0d23bf3 Add pi tool aliases, context files, and project trust 
Why: Headless runs need the pi tool names, walked context files, prompt includes, and a trust gate before project settings are loaded.
Evidence: go test -count=1 ./runtime/tools/ ./runtime/resources/ ./runtime/skills/
Impact: Existing tool names stay registered. Aliases are added only when the underlying tool exists.
Refs: feature/pi-headless N4
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-01 10:12:26 +00:00
weichenandCursor 2dedc0d20c Add an AgentSession with steer and follow-up queues 
Why: Steering hooks existed on the loop but nothing owned the queues, abort, or a model change during a run.
Evidence: go test -count=1 ./runtime/
Impact: Run still emits the existing event names. message_start, tool_execution_update, and agent_settled are added beside them.
Refs: feature/pi-headless N3
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-01 10:11:19 +00:00
weichenandCursor e7ab48e8ea Add native provider protocols and retry 
Why: The runtime could only speak OpenAI chat completions, so thinking levels, images, and the other vendor wires had nowhere to go.
Evidence: go test -count=1 ./runtime/llm/
Impact: Existing chat-completions calls stay the same unless a thinking level or image is set. Overflow errors are not retried.
Refs: feature/pi-headless N2
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-01 10:10:02 +00:00
weichenandCursor 6bc1b08540 Record sessions as an append-only entry tree 
Why: Linear transcripts cannot fork, and compaction rewrote history, so resume and branch navigation had nothing to point at.
Evidence: go test -count=1 ./runtime/session/
Impact: Load still returns the model-visible path, including old one-message-per-line files. Compaction appends a summary entry instead of truncating the file.
Refs: feature/pi-headless N1
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-01 10:08:04 +00:00