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refactor: rename the sandbox2 crate to sandbox and add the box naming rule - #2106
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Merge Risk: ⚪ Minimal · up to The crate rename and naming guidance show no actionable defect introduced by this change. The existing test-command inconsistency predates the PR and is not worsened by it. Pre-merge checks |
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| Check name | Status | Explanation |
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| Description check |  |
The description explains the rename and naming rule, documents intentional exceptions, provides review guidance, and reports formatting and test verification. It does not include the template's explic… |
| Title check | |
The title clearly identifies the two main changes: renaming the sandbox2 crate to sandbox and adding the box naming rule. It is concise, specific, and uses an imperative Conventional Commit style. |
| Docstring Coverage | |
Docstring coverage is 84.97% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 153 functions across 39 files. (1 skipped: … |
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A rabbit checks the box by name,
And hops through crates that match the same.
Old paths depart, new words take root,
Loopback octets guide the route.
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Approved: no findings at Nothing to do. Clobber: none: the rename is a pure |
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Inline comments:
Review comments at @docs/specs/18-spec-box-networking/18-spec-box-networking.md:
- Line 663: Update all documented filtered-test commands to use the repository’s
`just test-one` entrypoint, preserving each test filter and `-p sandbox` package
selection: in docs/specs/18-spec-box-networking/18-spec-box-networking.md at
lines 663-663, 668-668, and 676-676, and in
crates/sandbox/tests/caps_root_integration.rs at line 35-35, update the
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📒 Files selected for processing (56)
AGENTS.mdCargo.tomlcrates/mctx/Cargo.tomlcrates/mctx/src/env.rscrates/mctx/src/error.rscrates/mctx/src/lib.rscrates/minimal/src/loadouts.rscrates/minimal/src/zed.rscrates/minimald/Cargo.tomlcrates/minimald/src/env.rscrates/minimald/src/exec.rscrates/minimald/src/guest.rscrates/minimald/src/main.rscrates/minimald/src/net/answerer.rscrates/minimald/src/net/classifier.rscrates/minimald/src/net/dns.rscrates/minimald/src/net/gvproxy_network.rscrates/minimald/src/net/provider.rscrates/minimald/src/net/switch.rscrates/minimald/src/nsenter.rscrates/minimald/src/rpc.rscrates/minimald/src/sandbox_progress.rscrates/minimald/src/session.rscrates/minimald/src/session_host.rscrates/minimald/src/session_host/tests.rscrates/minimald/src/session_shell.rscrates/minimald/tests/classifier_root_integration.rscrates/minimald/tests/netns_root_integration.rscrates/minimald/tests/nsenter_integration.rscrates/minimald/tests/own_ip_tap_root_integration.rscrates/minvmd/README.mdcrates/minvmd/tests/guest_classifier_integration.rscrates/mip/Cargo.tomlcrates/mip/src/cmd_run.rscrates/op/Cargo.tomlcrates/op/src/cache_clean.rscrates/op/src/error.rscrates/op/src/specs.rscrates/op/src/standalone_test.rscrates/op/src/task_env.rscrates/orchestrator/Cargo.tomlcrates/orchestrator/src/error.rscrates/paths/src/lib.rscrates/sandbox/Cargo.tomlcrates/sandbox/src/config.rscrates/sandbox/src/error.rscrates/sandbox/src/forker.rscrates/sandbox/src/lib.rscrates/sandbox/src/listener.rscrates/sandbox/src/network.rscrates/sandbox/tests/caps_root_integration.rsdeny.tomldocs/architecture.mddocs/internal/licensing.mddocs/specs/18-spec-box-networking/18-spec-box-networking.mdscripts/install-host-classifier.sh
💤 Files with no reviewable changes (4)
- crates/sandbox/src/forker.rs
- crates/sandbox/src/listener.rs
- crates/sandbox/src/lib.rs
- crates/sandbox/src/error.rs
🚧 Files skipped from review as they are similar to previous changes (14)
- crates/paths/src/lib.rs
- deny.toml
- crates/minimal/src/loadouts.rs
- docs/internal/licensing.md
- crates/minimal/src/zed.rs
- crates/sandbox/src/network.rs
- docs/architecture.md
- crates/sandbox/src/config.rs
- crates/minimald/src/session_shell.rs
- crates/minvmd/README.md
- scripts/install-host-classifier.sh
- crates/minvmd/tests/guest_classifier_integration.rs
- crates/op/src/cache_clean.rs
- crates/minimald/src/net/switch.rs
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Inline comments:
Review comments at @AGENTS.md:
- Line 70: Update the Box Type policy in AGENTS.md to allow reading type.root
for required admission constraint validation, while keeping the restriction that
only Box Type resolution may use a type name to select runtime behavior.
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AGENTS.mdcrates/mctx/src/env.rscrates/mctx/src/error.rscrates/minimald/src/session_host.rscrates/minimald/src/session_host/tests.rscrates/minvmd/README.mdcrates/sandbox/Cargo.toml
🚧 Files skipped from review as they are similar to previous changes (6)
- crates/sandbox/Cargo.toml
- crates/minvmd/README.md
- crates/mctx/src/error.rs
- crates/mctx/src/env.rs
- crates/minimald/src/session_host/tests.rs
- crates/minimald/src/session_host.rs
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The crate rename conforms. The Naming section has three points that do not agree with architecture.md. See the line comments.
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minimal-review — approved
Verdict APPROVE — every review thread is resolved; @norrietaylor closed the last one. The review of 2feb8b3a7864 withheld this approval on the threads open then.
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Oct 10, 2026
… rule The crate is the operating-system isolation layer that boxes and package builds both run in. It is named for that, and the "2" left over from a removed predecessor is dropped. AGENTS.md gains a Naming section: a box is the thing, session and task are Box Type names, and sandbox is the isolation layer under both; a box's behaviour keys on its spec settings, never its Box Type name. It is the first of the renames that land before BOX (gominimal/inbox#731) is implemented. Generated by a recorded script (git mv, then sed over every live reference); dated spikes, superseded specs and the frozen workflows keep the old name. Cargo.lock refreshed and rustfmt applied. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
The Naming section described the BOX model as if it existed: a box command, BoxState and BoxSpec, pty_enabled and Box Type resolution. Name what the tree has today, link the BOX spec for the Box Types instead of listing them, and keep the rule as the target for new code. Backtick the comments the rename left saying a bare "sandbox" for the crate, and describe the crate in box terms. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
BOX-160 has minimald read type.root at admission to enforce the type's constraints. That validates the spec rather than choosing behaviour by type, so the rule names it alongside type resolution. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
A Box Host is the running minimald, not the machine. Package builds are boxes of the build type, which mip does not use yet. The Box Spec projection reads the type as well as admission. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
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* ci(macos): take the unit job's crate list from the justfile scope
The macOS unit job named `-p minvmd -p sessions` in three steps, so
renaming a crate (sessions -> boxes, R2) had to edit a frozen,
CODEOWNER-gated workflow. Those steps now call justfile recipes that
expand `{{scope}}`, so the list lives in one place:
- unit tests: `just test --profile ci -E 'not binary(/_integration$/)'`
(`test` now forwards extra args to nextest positionally)
- doctests: `just doctest`
- testbed archive: `just test-archive <file>` (new recipe)
just is installed by the existing pinned taiki-e/install-action step,
and the paths filter now includes the justfile, since a scope edit
changes what this lane runs. Job names are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
* refactor: rename the sessions crate to boxes
R2 of the box naming plan, after R1 (#2106) renamed sandbox2 to sandbox.
The crate holds the box domain types that min and minimald share, so it
is named for the box; `box` is a Rust keyword, so the crate is `boxes`.
A pure rename: git mv crates/sessions crates/boxes, the package name and
its description, the workspace member and dependency, every dependent
Cargo.toml, every crate path in Rust (`sessions::`, `::sessions::`,
`use sessions`), the justfile scope, the kani script, the specs' verify
lines and the docs that name the crate. Types, modules and serialised
names are unchanged, including minimald's own `sessions` module.
Cargo.lock refreshed and rustfmt applied.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
* docs: name the boxes crate in the architecture and commit-scope examples
Two crate mentions the rename missed: the bold crate name in the
composition paragraph and the single-crate scope example.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
* style: rustfmt after the boxes rename in gvproxy_network
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
This was referenced Oct 15, 2026
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) R3 of the box naming plan, after R1 (#2106) and R2 (#2201). The minimald modules whose subject is the box take box names, and so does minimal-client's autogen name module: - sessions -> box_manager (with sessions/composables.rs) - session -> box_actor (with session/{helpers,kind,tests}.rs) - session_host -> box_runtime (with session_host/{pty,tests}.rs) - session_sop -> box_ops - session_delta -> workspace_delta - session_shell -> attach_shell - minimal-client session_name -> box_name A pure rename: git mv, the mod declarations, every module path (crate::, minimald::, minimal_client::, bare and grouped imports), module mentions in doc comments, the source path the minimal test scans, the RUST_LOG filters in the session e2e, and current docs that name the files. Types, functions, fields, serialised names and the min session verb are unchanged. rustfmt applied. Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
mitodrummer
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* refactor(minimald): rename the session modules for what they hold R3 of the box naming plan, after R1 (#2106) and R2 (#2201). The minimald modules whose subject is the box take box names, and so does minimal-client's autogen name module: - sessions -> box_manager (with sessions/composables.rs) - session -> box_actor (with session/{helpers,kind,tests}.rs) - session_host -> box_runtime (with session_host/{pty,tests}.rs) - session_sop -> box_ops - session_delta -> workspace_delta - session_shell -> attach_shell - minimal-client session_name -> box_name A pure rename: git mv, the mod declarations, every module path (crate::, minimald::, minimal_client::, bare and grouped imports), module mentions in doc comments, the source path the minimal test scans, the RUST_LOG filters in the session e2e, and current docs that name the files. Types, functions, fields, serialised names and the min session verb are unchanged. rustfmt applied. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw * refactor: rename the session types for the box they model R4 of the box naming plan: the types and traits whose subject is the box take box names. SessionStatus becomes BoxState, the minimald actor and manager become BoxActor and BoxManager with their handles, and the runtime traits, store traits, exec types and network gate follow. minimald_rpc::SessionConfig becomes BoxConfig, so the actor's spawn config is BoxActorConfig. SessionId is left for R5. A pure rename: no serialised, wire, on-disk, CLI or env name changes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw * refactor: rename the session types for the box they model R4 of the BOX naming plan, rebuilt on main after R3 (#2228) squash-merged: the same rename as ff18bf7, applied to main. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
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First of the renames that land before BOX (gominimal/inbox#731) is implemented: the
sandbox2crate becomessandbox. It's the OS isolation layer that boxes and package builds both run in, and the "2" is left over from a predecessor that no longer exists.AGENTS.mdgains a Naming section: a box is the thing, session and task are Box Type names, sandbox is the isolation layer under both, and a box's behaviour keys on its spec settings, never its Box Type name.How to review
The diff (57 files, +501/−471) is generated. Review the script, then re-run it on main and compare:
After the script:
cargo update --workspace --offline(lockfile entry only),just fmt(lines the shorter name lets rustfmt rejoin), and theAGENTS.mdNaming section. Nothing else is hand-edited.Left as
sandbox2on purpose: dated spikes (docs/spikes/), the superseded specs 03 and 08, and one comment in the frozen.github/workflows/ci-macos.yml. No workflow builds or tests-p sandbox2, so CI is unaffected.Conflicts with open PRs
Test-merged against every open PR that shares a file. Only #2039 (and its CI-only copy #2081) gains a conflict: it edits
crates/sandbox2/src/lib.rs, which this moves. Re-running the script on that branch after rebasing resolves it. Every other open PR's conflicts are ones it already has with main.Verification
just fmt-check: pass.just testlocally, on the previous regeneration of this script (one main commit back): 3216/3218 passed. The 2 failures (boxes_lack_cap_net_raw,a_transient_publish_failure_keeps_the_default_port) also fail on plain main in this sandbox: one is a namespace/capability test, and the other was observed failing the same way on main during the run.🤖 Generated with Claude Code
https://claude.ai/code/session_01NSAwDroXL6KqsSxUzdbZGw
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