ai `c89c2ec2..30372b85`

PR #18912, base is the merge-base c89c2ec2 — the same diff the PR page shows

What the diff shows

GitHub tells you what lines changed.

19 files changed
807 lines in changed components
6 components touched
0 public routes added or removed
0 schema statements
0 dependencies added

What you actually need

Cutplane tells you what changed in the system.

DeepAgents, Claude Code, Codex, OpenCode and ACP harnesses now supply reusable sandbox setup recipes.
Sandbox preparation now applies selected harness recipes before sessions start and derives a deterministic identity for the prepared artifact.
DeepAgents setup now installs a checksum-verified ripgrep binary when the sandbox does not already provide one.
ACP setup now packages and installs the selected npm-based implementation alongside its bridge.

What this change does — 1 change, 1 added

Reusable harness sandbox setup, added

ADDED

Harness bridge runtimes and their dependencies were installed as part of session startupbecomesHarnesses provide reusable setup recipes that sandbox preparation can apply and identify before sessions begin

Sandbox providers can now prepare a reusable template or snapshot with the bridge runtimes and command-line tools required by selected harnesses before creating live sessions. The prepared artifact carries a deterministic identity derived from its selected recipes and optional sandbox setup, allowing providers to cache it and later skip already-applied setup. Claude Code, Codex, OpenCode, DeepAgents, and ACP-based harnesses each provide the files and installation commands needed for this common preparation flow.

Allows snapshot-capable sandbox providers to preserve installed runtimes and avoid repeating setup for later sessions
Uses one recipe application and identity path across the supported harnesses
Records setup under the sandbox working area, avoiding a requirement for root filesystem access

10 files read to write this

packages/harness-deepagents/src/deepagents-bootstrap.ts
packages/harness-claude-code/src/claude-code-harness.ts
packages/harness-codex/src/codex-harness.ts
packages/harness-opencode/src/opencode-harness.ts
packages/harness-acp/src/v1/acp-bootstrap.ts
packages/harness/src/agent/prepare-sandbox-for-harness.ts
packages/harness-deepagents/src/deepagents-harness.ts
packages/harness-claude-code/src/claude-code-bootstrap.ts
packages/harness-codex/src/codex-bootstrap.ts
packages/harness-opencode/src/opencode-bootstrap.ts

ComponentDeepAgents, Claude Code and 4 more components
- DeepAgentspackages/harness-deepagents/src/2 files · 171 lines
- Claude Codepackages/harness-claude-code/src/2 files · 133 lines
- Codexpackages/harness-codex/src/2 files · 124 lines
- OpenCodepackages/harness-opencode/src/2 files · 120 lines
- ACP V1packages/harness-acp/src/v1/2 files · 233 lines
- Agentpackages/harness/src/agent/1 file · 26 lines
The DeepAgents static export surface added DEEPAGENTS_BOOTSTRAP_DIR and getDeepAgentsBootstrap.C5claim:10
symbols/surface.ts exportSurface over packages/harness-deepagents/src/, packages/harness-deepagents/src/
The Claude Code static export surface added CLAUDE_CODE_BOOTSTRAP_DIR and getClaudeCodeBootstrap.C5claim:8
symbols/surface.ts exportSurface over packages/harness-claude-code/src/, packages/harness-claude-code/src/
The Codex static export surface added CODEX_BOOTSTRAP_DIR and getCodexBootstrap.C5claim:9
symbols/surface.ts exportSurface over packages/harness-codex/src/, packages/harness-codex/src/
The OpenCode static export surface added OPENCODE_BOOTSTRAP_DIR and getOpenCodeBootstrap.C5claim:11
symbols/surface.ts exportSurface over packages/harness-opencode/src/, packages/harness-opencode/src/
The ACP V1 static export surface added createACPBootstrap.C5claim:7
symbols/surface.ts exportSurface over packages/harness-acp/src/v1/, packages/harness-acp/src/v1/
File11 files, +424 −383
- packages/harness-acp/src/v1/acp-bootstrap.ts+119 −0
- packages/harness-acp/src/v1/acp-v1-harness.ts+7 −107
- packages/harness-deepagents/src/deepagents-bootstrap.ts+87 −0
- packages/harness-deepagents/src/deepagents-harness.ts+5 −79
- packages/harness-claude-code/src/claude-code-harness.ts+5 −63
- packages/harness-claude-code/src/claude-code-bootstrap.ts+65 −0
- packages/harness-codex/src/codex-harness.ts+5 −59
- packages/harness-opencode/src/opencode-harness.ts+5 −57
…and 3 more, in this report’s stored JSON
The ACP V1 component changed 2 files, with 233 lines added or removed.C3claim:1
component/change.ts componentChanges over packages/harness-acp/src/v1/acp-bootstrap.ts, packages/harness-acp/src/v1/acp-v1-harness.ts
The DeepAgents component changed 2 files, with 171 lines added or removed.C3claim:2
component/change.ts componentChanges over packages/harness-deepagents/src/deepagents-bootstrap.ts, packages/harness-deepagents/src/deepagents-harness.ts
The Claude Code component changed 2 files, with 133 lines added or removed.C3claim:3
component/change.ts componentChanges over packages/harness-claude-code/src/claude-code-bootstrap.ts, packages/harness-claude-code/src/claude-code-harness.ts
The Codex component changed 2 files, with 124 lines added or removed.C3claim:4
component/change.ts componentChanges over packages/harness-codex/src/codex-bootstrap.ts, packages/harness-codex/src/codex-harness.ts
The OpenCode component changed 2 files, with 120 lines added or removed.C3claim:5
component/change.ts componentChanges over packages/harness-opencode/src/opencode-bootstrap.ts, packages/harness-opencode/src/opencode-harness.ts
The Agent component changed 1 file, with 26 lines added or removed.C3claim:6
component/change.ts componentChanges over packages/harness/src/agent/prepare-sandbox-for-harness.ts
FunctioncreateACPBootstrap(), createACPV1() and 3 more functions
- createACPBootstrap()packages/harness-acp/src/v1/acp-bootstrap.tsreaches ACP V1
- createACPV1()packages/harness-acp/src/v1/acp-v1-harness.tsreaches packages/harness-acp/src/v1/bridge/
- DEEPAGENTS_BOOTSTRAP_DIR()packages/harness-deepagents/src/deepagents-bootstrap.tsreaches DeepAgents
- OPENCODE_BOOTSTRAP_DIR()packages/harness-opencode/src/opencode-bootstrap.tsreaches OpenCode
- prepareSandboxForHarness()packages/harness/src/agent/prepare-sandbox-for-harness.tsreaches packages/harness/agent/
The addition of createACPBootstrap reached 6 files in packages/harness-acp/src/v1/ through a precise 1-to-4-hop path; 3 of 3 names in its file changed.C7claim:18
packages/harness-acp/src/v1/acp-bootstrap.ts:12-89 (head)
impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness-acp/src/v1/
The body change to createACPV1 reached 4 files in packages/harness-acp/src/v1/bridge/ through a precise 3-to-4-hop path via packages/harness-acp/src/v1/, packages/harness-acp/src/, and packages/harness-acp/src/v1/bridge/; 3 of 23 names in its file changed.C7claim:19
packages/harness-acp/src/v1/acp-v1-harness.ts:111-682 (head)
impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness-acp/src/v1/, packages/harness-acp/src/, packages/harness-acp/src/v1/bridge/
The addition of DEEPAGENTS_BOOTSTRAP_DIR reached 2 files in packages/harness-deepagents/src/ through a precise 1-to-2-hop path; 8 of 8 names in its file changed.C7claim:15
packages/harness-deepagents/src/deepagents-bootstrap.ts:10-10 (head)
impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness-deepagents/src/
The addition of OPENCODE_BOOTSTRAP_DIR reached 2 files in packages/harness-opencode/src/ through a precise 1-to-2-hop path; 4 of 4 names in its file changed.C7claim:16
packages/harness-opencode/src/opencode-bootstrap.ts:5-5 (head)
impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness-opencode/src/
The body change to prepareSandboxForHarness reached 1 file in packages/harness/agent/ through a precise 1-hop path via packages/harness/src/agent/ and packages/harness/agent/; 2 of 5 names in its file changed.C7claim:17
packages/harness/src/agent/prepare-sandbox-for-harness.ts:43-117 (head)
impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness/src/agent/, packages/harness/agent/
Diff51 line ranges
- packages/harness-acp/src/v1/acp-bootstrap.ts1–119
- packages/harness-acp/src/v1/acp-v1-harness.ts2–2, 4–4, 9–9 and 7 more spans
- packages/harness-deepagents/src/deepagents-bootstrap.ts1–87
- packages/harness-deepagents/src/deepagents-harness.ts2–2, 4–4, 10–10 and 6 more spans
- packages/harness-claude-code/src/claude-code-harness.ts2–2, 4–4, 10–10 and 5 more spans
- packages/harness-claude-code/src/claude-code-bootstrap.ts1–65
- packages/harness-codex/src/codex-harness.ts2–2, 4–4, 10–10 and 5 more spans
- packages/harness-opencode/src/opencode-harness.ts2–2, 4–4, 10–10 and 5 more spans
…and 3 more, in this report’s stored JSON

Written from 10 files of the 11 changed files that belong to a component, ranked by the same review priority as the components below.

6components changed

3reached, not changed

0components added/removed

0dependencies added between components

0dependencies removed between components

0files moved to another path

19 files changed, 19 claims stated. 8 components reached in total.

Architecture — 6 components changed

Before

DeepAgentspackages/harness-deepagents/src/

Claude Codepackages/harness-claude-code/src/

Codexpackages/harness-codex/src/

OpenCodepackages/harness-opencode/src/

ACP V1packages/harness-acp/src/v1/

Agentpackages/harness/src/agent/

After

DeepAgentspackages/harness-deepagents/src/MODIFIED

Claude Codepackages/harness-claude-code/src/MODIFIED

Codexpackages/harness-codex/src/MODIFIED

OpenCodepackages/harness-opencode/src/MODIFIED

ACP V1packages/harness-acp/src/v1/MODIFIED

Agentpackages/harness/src/agent/MODIFIED

DeepAgents packages/harness-deepagents/src/

2 files · 171 lines · 0.09 · 1 dependent

Claude Code packages/harness-claude-code/src/

2 files · 133 lines · 0.09 · 1 dependent

Codex packages/harness-codex/src/

2 files · 124 lines · 0.09 · 1 dependent

OpenCode packages/harness-opencode/src/

2 files · 120 lines · 0.09 · 1 dependent

ACP V1 packages/harness-acp/src/v1/

2 files · 233 lines · 0.07 · 2 dependents

Agent packages/harness/src/agent/

1 file · 26 lines · 0.06 · 1 dependent

What this narrows

7,881
files at head
251
components
6
changed by this change
6
drawn above of 6
3
ranked most important of 6

Each row is the one above it, narrowed by review priority — never by the renderer, and never by the alphabet. Everything a row leaves out is in this report’s stored JSON, with the score that put it there.

Where the new files landed — 5 files in 5 components

Every file this change added, grouped by the component it landed in — what each arrival belongs to, what reaches it, and what it reaches. The files themselves are in this report’s stored JSON.

packages/harness-deepagents/src/1 NEW FILE

Belongs to: DeepAgentsbase frame
Used by: nothing in the existing application
Calls: nothing internal

packages/harness-claude-code/src/1 NEW FILE

Belongs to: Claude Codebase frame
Used by: nothing in the existing application
Calls: nothing internal

packages/harness-codex/src/1 NEW FILE

Belongs to: Codexbase frame
Used by: nothing in the existing application
Calls: nothing internal

packages/harness-opencode/src/1 NEW FILE

Belongs to: OpenCodebase frame
Used by: nothing in the existing application
Calls: nothing internal

packages/harness-acp/src/v1/1 NEW FILE

Belongs to: ACP V1base frame
Used by: nothing in the existing application
Calls: nothing internal

1 added file carries no component — 1 docs.

What else could behave differently — 8 components

These components import something this change touched, so they may behave differently — 24 files of them in total. 3 components of them were not edited by it.

3 of 7 computed groups drawn, ranked by review priority. The other 4 are below and in this report’s stored JSON.

packages/harness-acp/src/C74 files may behave differently

The body change to createACPV1 reached 4 files in packages/harness-acp/src/ through a precise 1-to-3-hop path via packages/harness-acp/src/v1/ and packages/harness-acp/src/; 3 of 23 names in its file changed.

ACP V1packages/harness-acp/src/v1/
packages/harness-acp/src/

createACPV1 in packages/harness-acp/src/v1/acp-v1-harness.ts (body changed) · 1-3 hops · precise · 1 of 2 changed symbols reaching it

packages/harness-acp/src/v1/acp-v1-harness.ts:111-682 (head)

impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness-acp/src/v1/, packages/harness-acp/src/

Claude Codepackages/harness-claude-code/src/C73 files may behave differently

The addition of CLAUDE_CODE_BOOTSTRAP_DIR reached 3 files in packages/harness-claude-code/src/ through a precise 1-to-2-hop path; 4 of 4 names in its file changed.

Claude Codepackages/harness-claude-code/src/

CLAUDE_CODE_BOOTSTRAP_DIR in packages/harness-claude-code/src/claude-code-bootstrap.ts (added) · 1-2 hops · precise · 1 of 3 changed symbols reaching it

packages/harness-claude-code/src/claude-code-bootstrap.ts:17-17 (head)

impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness-claude-code/src/

Codexpackages/harness-codex/src/C72 files may behave differently

The addition of CODEX_BOOTSTRAP_DIR reached 2 files in packages/harness-codex/src/ through a precise 1-to-2-hop path; 4 of 4 names in its file changed.

Codexpackages/harness-codex/src/

CODEX_BOOTSTRAP_DIR in packages/harness-codex/src/codex-bootstrap.ts (added) · 1-2 hops · precise · 1 of 3 changed symbols reaching it

packages/harness-codex/src/codex-bootstrap.ts:16-16 (head)

impact/reach.ts reverse-reachability, lifted by impact/group.ts over packages/harness-codex/src/

1 component held back at 3+ hops or by an ambiguous edge

component	files	hops	resolution
packages/harness-acp/src/v1/bridge/	4	3-4	precise

4 more components reached, ranked lower

component	files	hops
packages/harness-deepagents/src/	2	1-2
packages/harness-opencode/src/	2	1-2
packages/harness/agent/	1	1-1
packages/harness-acp/src/v1/	6	1-4

12 reached files belong to no component — tests, docs and config.

Routes, schema, dependencies

No public URL, no migration and no new package.

Not stated

455 routes were found on files whose role excludes them, so no route is claimed for them.