forked from farhoodlabs/paperclip
Devin Foley
cb6af7c2cc
## Thinking Path
> - Paperclip orchestrates AI agents for zero-human companies
> - The e2b sandbox provider implements `onEnvironmentExecute` so
adapters can spawn CLIs in an e2b sandbox
> - For commands that need stdin (e.g. piping a hello prompt to a CLI),
the previous implementation awaited a foreground `commands.run({ stdin:
true, ... })` and then tried to call `sendStdin(pid)` on the now-dead
PID
> - That call resolves only after the process exits, so stdin was never
delivered and e2b raised "process not found"
> - This pull request stages stdin to `/tmp/paperclip-stdin-<uuid>`
inside the sandbox and shell-redirects it (`exec '<cmd>' '<args>' <
'<file>'`), making the command synchronous regardless of whether stdin
is supplied
> - The benefit is adapter Test probes that pipe a hello prompt to a CLI
inside an e2b sandbox now actually deliver the prompt
## What Changed
- `packages/plugins/sandbox-providers/e2b/src/plugin.ts`: replace the
broken async `commands.run` + `sendStdin` flow with stdin-staging to a
sandbox temp file and shell-redirection
- Staged file is removed in a `finally` block; write failures propagate
after best-effort cleanup
## Verification
- `pnpm vitest run --no-coverage --project @paperclipai/sandbox-e2b` —
all 17 unit tests pass
- `pnpm typecheck` clean
- Manual: a sandboxed adapter Test probe that pipes a hello prompt now
receives the prompt
## Risks
Low risk — `plugin.test.ts` already encodes the temp-file design; the
change brings the implementation in line with the test.
## Model Used
Claude Opus 4.7 (1M context)
## 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 run tests locally and they pass
- [x] I have added or updated tests where applicable — existing tests
already encode the new design
- [x] If this change affects the UI, I have included before/after
screenshots — N/A (no UI)
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge