feat(backend/copilot): enable E2B auto_resume and reduce safety-net timeout

[Otto-AGPT]

Enable E2B auto_resume lifecycle option and reduce the safety-net timeout from 3 hours to 5 minutes.

Currently, if the explicit per-turn pause_sandbox_direct() call fails (process crash, network issue, fire-and-forget task cancellation), the sandbox keeps running for up to 3 hours before the safety-net timeout fires. With this change, worst-case billing drops to 5 minutes.

Changes

• Add auto_resume: True to sandbox lifecycle config — paused sandboxes wake transparently on SDK activity
• Reduce e2b_sandbox_timeout default from 10800s (3h) → 300s (5min)
• Add e2b_sandbox_auto_resume config field (default: True)
• Guard: auto_resume only added when on_timeout == "pause"

What doesn't change

• Explicit per-turn pause_sandbox_direct() remains the primary mechanism
• connect() / _try_reconnect() flow unchanged
• Redis key management unchanged
• No latency impact (resume is ~1-2s regardless of trigger)

Risk

Very low — auto_resume is additive. If it doesn't work as advertised, connect() still resumes paused sandboxes exactly as before.

Ref: https://e2b.dev/docs/sandbox/auto-resume
Linear: SECRT-2118

---

Co-authored-by: Zamil Majdy (@majdyz) zamil.majdy@agpt.co

[github-actions]

🔍 PR Overlap Detection

This check compares your PR against all other open PRs targeting the same branch to detect potential merge conflicts early.

🔴 Merge Conflicts Detected

The following PRs have been tested and will have merge conflicts if merged after this PR. Consider coordinating with the authors.

• chore(backend/deps): bump the production-dependencies group across 1 directory with 18 updates #12296 (dependabot · updated 3d ago)
  • 📁 autogpt_platform/backend/
    • poetry.lock (1 conflict, ~5 lines)
    • pyproject.toml (1 conflict, ~7 lines)

🟢 Low Risk — File Overlap Only

These PRs touch the same files but different sections (click to expand)

• feat(platform): CoPilot credit charging, token rate limiting, and usage UI #12385 (majdyz · updated 8m ago)

  • Shared files: autogpt_platform/backend/backend/copilot/config.py

• feat(backend/copilot): parse @@agptfile bare refs by file extension #12392 (majdyz · updated 12m ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• feat(backend/api): External API v2 #12206 (Pwuts · updated 23h ago)

  • Shared files: autogpt_platform/backend/backend/copilot/tools/e2b_sandbox_test.py

• feat(analytics): read-only SQL views layer with analytics schema #12367 (majdyz · updated 1d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• feat(platform/blocks): Add Instagram automation blocks #11602 (akkupratap323 · updated 2d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• chore(backend/deps-dev): bump the development-dependencies group across 1 directory with 2 updates #12197 (dependabot · updated 3d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• chore(backend/deps): bump todoist-api-python from 2.1.7 to 3.2.1 in /autogpt_platform/backend #12044 (dependabot · updated 3d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• chore(backend/deps): bump groq from 0.30.0 to 1.0.0 in /autogpt_platform/backend #12038 (dependabot · updated 3d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• chore(backend/deps): bump stagehand from 0.5.9 to 3.5.0 in /autogpt_platform/backend #12039 (dependabot · updated 3d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• chore(backend/deps-dev): bump faker from 38.3.0 to 40.4.0 in /autogpt_platform/backend #12133 (dependabot · updated 3d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• chore(backend/deps): bump aiodns from 3.6.1 to 4.0.0 in /autogpt_platform/backend #12045 (dependabot · updated 3d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

• ci: run pyright against Python 3.13 #12026 (Deeven-Seru · updated 3d ago)

  • Shared files: autogpt_platform/backend/pyproject.toml

Summary: 1 conflict(s), 0 medium risk, 12 low risk (out of 13 PRs with file overlap)

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Auto-generated on push. Ignores: openapi.json, lock files.

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📒 Files selected for processing (3)

• autogpt_platform/backend/backend/copilot/config.py
• autogpt_platform/backend/backend/copilot/tools/e2b_sandbox.py
• autogpt_platform/backend/backend/copilot/tools/e2b_sandbox_test.py

🚧 Files skipped from review as they are similar to previous changes (3)

• autogpt_platform/backend/backend/copilot/tools/e2b_sandbox_test.py
• autogpt_platform/backend/backend/copilot/config.py
• autogpt_platform/backend/backend/copilot/tools/e2b_sandbox.py

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Walkthrough

This PR updates the e2b sandbox timeout configuration from 3 hours to 5 minutes, introduces SandboxLifecycle object construction for lifecycle management, enables auto_resume behavior based on timeout strategy, and upgrades the e2b dependency from version 2.0 to 2.15.2.

Changes

Cohort / File(s)	Summary
Configuration Updates autogpt_platform/backend/backend/copilot/config.py	Reduced default e2b_sandbox_timeout from 10800 to 300 seconds (5 minutes instead of 3 hours).
Sandbox Lifecycle Implementation autogpt_platform/backend/backend/copilot/tools/e2b_sandbox.py	Added SandboxLifecycle import and object construction in get_or_create_sandbox, replacing inline lifecycle dict. Updated docstrings to reflect 5-minute timeout default and auto_resume behavior tied to on_timeout strategy.
Test Updates autogpt_platform/backend/backend/copilot/tools/e2b_sandbox_test.py	Updated test expectations for lifecycle objects: auto_resume set to True for "pause" timeout strategy and False for "kill" strategy. Updated docstring to document auto_resume disabling behavior.
Dependency Version autogpt_platform/backend/pyproject.toml	Upgraded e2b package constraint from ^2.0 to ^2.15.2.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• feat(copilot): E2B sandbox auto-pause between turns to eliminate idle billing #12330: Touches the same e2b sandbox lifecycle paths, adding SandboxLifecycle object with auto_resume semantics and modifying timeout/defaults configuration.

Suggested labels

size/l, platform/blocks

Suggested reviewers

• Swiftyos
• kcze

Poem

🐰 With timeout whispers from three hours down to five,
The sandbox dances, keeping workflows alive,
Auto-resume springs to life with grace,
Lifecycle objects set the perfect pace!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main changes: enabling E2B auto_resume and reducing the safety-net timeout from 3 hours to 5 minutes.
Description check	✅ Passed	The description provides comprehensive detail about the changes, rationale, and risk assessment, directly relating to the changeset modifications.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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