Files
PaperClipAI/packages
machjesusmotoandZephyr 0e21a27301 fix: forward onSpawn to hermes and process adapters for PID persistence (#8722)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - The adapter layer (hermes-local, process adapters) delegates agent
execution to child processes via `runChildProcess()`
> - `runChildProcess()` accepts an `onSpawn` callback to report child
PID and process group info, but the hermes and process adapters were not
forwarding `ctx.onSpawn` to this call
> - Without PID persistence, the orphan reaper cannot distinguish live
runs from abandoned processes, causing false-positive reaps and 5-minute
timeout errors for active runs
> - This pull request adds `onSpawn: ctx.onSpawn` to both adapter call
sites and declares the option in the `runChildProcess` wrapper type
> - The benefit is that the orphan reaper can now correctly track live
child processes, eliminating false-positive reaps

## Linked Issues or Issue Description

Fixes #8723

Fixes false-positive orphan reaps in hermes-local and process adapters
by forwarding the `onSpawn` callback to `runChildProcess()`. All other
adapters (claude-local, codex-local, cursor-local, gemini-local,
grok-local, opencode-local, pi-local) already forward `ctx.onSpawn` —
these two were the only ones missing it.

## What Changed

- `server/src/adapters/utils.ts`: Added `onSpawn?` to the
`runChildProcess()` options type so callers can forward the callback
- `server/src/adapters/process/execute.ts`: Forward `ctx.onSpawn` to
`runChildProcess()`
- `packages/adapters/hermes/src/server/execute.ts`: Forward
`ctx.onSpawn` to `runChildProcess()`

## Verification

- `pnpm -r typecheck` passes across all packages
- Confirmed all other adapters already forward `ctx.onSpawn` (12 grep
matches across 9 adapter files)
- The 3-line diff is additive only — no existing behavior is changed,
only a previously-ignored callback is now forwarded

## Risks

Low risk. This is a 3-line additive change. The `onSpawn` parameter is
optional (`?`) so existing callers are unaffected. The callback is
already well-established across all other adapters.

## Model Used

Hermes Agent (by Nous Research) — xiaomi/mimo-v2.5-pro via OpenRouter,
with tool use (file editing, git, GitHub API).

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links
- [x] My branch name describes the change and contains no internal
ticket id
- [x] I have run tests locally and they pass (typecheck passes)
- [x] I have added or updated tests where applicable (N/A — type-level
fix only, no behavioral change)
- [x] I have updated relevant documentation to reflect my changes (N/A —
internal fix)
- [x] I have considered and documented any risks above

---------

Co-authored-by: Zephyr <zephyr@motoyuki.dev>
2026-07-13 12:33:08 -05:00
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