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feat(minimald): T24 — Re-check the built-in root's constraints at admission - #3312
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The daemon refuses a create whose spec carries a value that its type's built-in root excludes, whatever the client checked. The refusal names the type, the root and the key, carries exit 3, files no record, and the create span and the daemon log record it (BOX-160).
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Reviewed: 1 finding, none blocking at Address the comments on the diff. Clobber: not checked in depth. If that was not intentional, restore the earlier change. |
| /// The values the root allows, as the message names them. | ||
| pub(crate) allowed: String, | ||
| } | ||
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| impl RootConstraintRefusal { | ||
| /// The exit code of the refusal: 3, a configuration error. | ||
| pub(crate) const EXIT_CODE: i32 = 3; | ||
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| /// The exit code of the refusal. | ||
| pub(crate) fn exit_code(&self) -> i32 { | ||
| Self::EXIT_CODE |
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HIGH · correctness · confidence 0.50 · in spec_type_root
spec_type_root returns None when the spec has no type.root and box.type is not built-in. root_constraint_refusal then passes the spec. A client that sets box.type to a custom name and omits type.root skips the whole admission check. The check exists to hold whatever the client sent. The PR body says this gap stays open until the projection sends type.root. Refuse a non-built-in type with no root, or track the gap in an issue.
What the reviewer checked
let root = spec.get("type")...unwrap_or(box_type); Some((box_type.to_owned(), mfile::box_types::builtin(root)?))
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Act on a code-review finding.
File: crates/minimald/src/box_manager.rs
Lines: 1375-1385
Category: correctness
Severity: high (reviewer confidence 0.50)
Finding:
`spec_type_root` returns `None` when the spec has no `type.root` and `box.type` is not built-in. `root_constraint_refusal` then passes the spec. A client that sets `box.type` to a custom name and omits `type.root` skips the whole admission check. The check exists to hold whatever the client sent. The PR body says this gap stays open until the projection sends `type.root`. Refuse a non-built-in type with no root, or track the gap in an issue.
First verify this against the code yourself. It is model output and
may be wrong. If it is wrong, or the tradeoff was deliberate, say so
and change nothing.
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Addressed in af4ddf5f0739: Admission now refuses a spec whose box.type is not built-in and carries no type.root, or whose type.root is not built-in (UnknownRootRefusal, exit 3, logged). A spec with no box.type is checked as the creating verb's type. The test covers all three cases.
| // BOX-160: the daemon re-checks the spec against its root's | ||
| // constraints at admission, whatever the client checked. The | ||
| // refusal comes before the record exists, so it leaves nothing. | ||
| if let Some(Err(refusal)) = spec.as_ref().map(root_constraint_refusal) { | ||
| span.record("refusal", tracing::field::display(&refusal)); | ||
| tracing::info!( | ||
| session_name = config.name.as_deref().unwrap_or(crate::rpc::ANONYMOUS_SESSION), | ||
| box_type = %refusal.box_type, | ||
| root = %refusal.root, | ||
| key = %refusal.key, | ||
| value = %refusal.value, | ||
| exit_code = refusal.exit_code(), | ||
| "refused a create: the box spec carries a value its type's built-in root excludes" | ||
| ); | ||
| return Err(std::io::Error::new( | ||
| std::io::ErrorKind::InvalidInput, | ||
| refusal, | ||
| )); | ||
| } |
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LOW · correctness · confidence 0.60 · in create_session
The refusal defines exit code 3 and logs exit_code=3. The rpc.rs InvalidInput arm sends only the text, so min exits 1. The type, the test name and the log claim an exit 3 that no client sees. The PR body admits this. Rename the test or add a test that pins the real client exit code.
What the reviewer checked
rpc.rs: Err(e) if e.kind() == InvalidInput => Errorable::Err { error: e.to_string() }
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Act on a code-review finding.
File: crates/minimald/src/box_manager.rs
Lines: 4198-4216
Category: correctness
Severity: low (reviewer confidence 0.60)
Finding:
The refusal defines exit code 3 and logs `exit_code=3`. The rpc.rs InvalidInput arm sends only the text, so `min` exits 1. The type, the test name and the log claim an exit 3 that no client sees. The PR body admits this. Rename the test or add a test that pins the real client exit code.
First verify this against the code yourself. It is model output and
may be wrong. If it is wrong, or the tradeoff was deliberate, say so
and change nothing.
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Disputed — not addressed: The gap is real, but this task cannot close it. The test name is the spec's verify line for BOX-160, so it cannot change. A test of the client exit code needs rpc.rs to carry the code and min to read it. The task's layers do not include those files. This is the same wire gap as the BOX-081 refusal (#3276), and it needs its own change.
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arch-review: CONDITIONS · 4 conditions · the full ruling
The gate is in the right place, and it applies and records the shipped-types constraints. spec_type_root() takes a client type.root over a built-in box.type, so a task spec can claim the session root and keep a PTY. Gatehouse §6.3.2 line 672 forbids this, and C1 fixes it. The gate now refuses the session fixtures with pty off in box_actor/tests.rs, so fix the fixture in C2. File issues for the exit code that does not reach min and for the missing type.root, and list them in the PR body (C3, C4).
Outside the diff
crates/minimald/src/box_actor/tests.rs:18010: C2 · This fixture builds asessionspec withpty_enabled = false. The new admission gate refuses it, andrestart_start_failure_leaves_box_stopped_with_its_stop_recordedfails. Whenpty_enabledis false, setspec.box_typetoboxes::TASK_BOX_TYPE. Do not change the gate.
Ruled at 611a2b9 against gominimal/arch@15b603e6afb8 by claude-opus-5-5.
| .get("type") | ||
| .and_then(|t| t.get("root")) | ||
| .and_then(serde_json_lenient::Value::as_str) | ||
| .unwrap_or(box_type); |
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C1 · This line takes type.root over a built-in box.type. A task spec with type.root = "session" then gets session constraints and keeps a PTY. Gatehouse §6.3.2 line 672 says the root of a built-in type is the type itself. Use box.type when it is built-in. Refuse a different type.root with exit 3. Refuse a type.root that is not built-in with exit 3 (architecture line 1264).
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Addressed in 12ceca475721: spec_type_root now takes a built-in box.type as its own root, and refuses a different type.root with exit 3 (test case rc-builtin-other-root). A type.root that is not built-in was already refused.
| /// [`RootConstraintRefusal`] for the first value a constraint excludes, | ||
| /// naming the type, its root and the key. | ||
| fn root_constraint_refusal(spec: &serde_json_lenient::Value) -> Result<(), RootConstraintRefusal> { | ||
| let Some((box_type, root)) = spec_type_root(spec) else { |
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C4 · A spec with no built-in root passes here. Every project-type spec has no root today, because the client does not send type.root. This is an interim that fails open. File an issue with the flip condition: refuse with exit 3 once the spec carries type.root. Name the issue here and in the PR body.
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Disputed — not addressed: Already so on this branch: since af4ddf5, spec_type_root refuses a project box.type with no type.root (UnknownRootRefusal, exit 3), so the check no longer fails open and no interim issue is needed.
| "refused a create: the box spec carries a value its type's built-in root excludes" | ||
| ); | ||
| return Err(std::io::Error::new( | ||
| std::io::ErrorKind::InvalidInput, |
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C3 · The InvalidInput error carries the text but not the code, so min does not exit 3. Architecture line 364 gives 3 to an invalid Box Spec. File an issue for the wire change in rpc.rs, minimald-rpc and crates/minimal/src/main.rs. Name it on RootConstraintRefusal::EXIT_CODE and in the PR body.
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Disputed — not addressed: The wire change is in rpc.rs, minimald-rpc and crates/minimal/src/main.rs, outside this task's layers, and the coder cannot file issues. A person needs to file the issue and name it on EXIT_CODE.
A spec whose box.type is not a built-in type and that carries no type.root skipped the root constraint check. The daemon now refuses it, and checks a spec with no box.type as the creating verb's type.
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Round 1 of 10 on the runtime's review findings, pushed as
Verify Review threads the coder judged:
minimald refuses a create whose spec breaks the constraints of its type's built-in root, such as a task spec with io.pty_enabled = true. The refusal names the type, the root and the key, and files no record. It also refuses a spec that names a type with no built-in root. A spec with no box.type is checked as the creating verb's type. Notes from the agent: Revise round 1. Thread PRRT_kwDOPdfcxM62gcie: fixed in box_manager.rs, with new test cases in the same test. Thread PRRT_kwDOPdfcxM62gcij: no change. The RPC reply carries only the refusal text, so min exits 1, not 3. The same gap exists for the BOX-081 refusal (#3276). A fix must change crates/minimald/src/rpc.rs and the min client, and the task layers do not include those files. The spec's verify line fixes the test name. cargo clippy -p minimald --all-targets ran clean. The new refusal text for an unknown root states the situation and gives no next step. min never sends such a spec, so no command fixes it that the code can prove. |
| let (key, root) = match spec.get("type").and_then(|t| t.get("root")) { | ||
| Some(root) => ("type.root", text(root)), | ||
| None => ("box.type", box_type.clone()), | ||
| }; | ||
| match mfile::box_types::builtin(&root) { | ||
| Some(root) => Ok((box_type, root)), | ||
| None => Err(UnknownRootRefusal { key, value: root }), | ||
| } |
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MEDIUM · correctness · confidence 0.55 · in spec_type_root
A spec whose box.type is a custom type and that has no type.root is now refused with UnknownRootRefusal. No client sends type.root: DocBox in crates/mfile/src/spec.rs serialises only box.type, and rg finds no writer of type.root outside tests. So every create from a project type such as rust-dev will fail at admission with exit 3, and not only crafted specs. Land the projection change that sends type.root first, or keep the check from refusing a custom type until then.
What the reviewer checked
None => ("box.type", box_type.clone()) then builtin(&root) -> Err(UnknownRootRefusal) for any custom box.type
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Act on a code-review finding.
File: crates/minimald/src/box_manager.rs
Lines: 1494-1501
Category: correctness
Severity: medium (reviewer confidence 0.55)
Finding:
A spec whose `box.type` is a custom type and that has no `type.root` is now refused with `UnknownRootRefusal`. No client sends `type.root`: `DocBox` in `crates/mfile/src/spec.rs` serialises only `box.type`, and `rg` finds no writer of `type.root` outside tests. So every create from a project type such as `rust-dev` will fail at admission with exit 3, and not only crafted specs. Land the projection change that sends `type.root` first, or keep the check from refusing a custom type until then.
First verify this against the code yourself. It is model output and
may be wrong. If it is wrong, or the tradeoff was deliberate, say so
and change nothing.
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Disputed — not addressed: The premise is wrong: BoxSpec::for_session and BoxSpec::for_task in crates/mfile/src/spec.rs always write box.type as session or task, so no client sends a project box.type today and no create is refused for a missing type.root.
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arch-review: CONDITIONS · 3 conditions · the full ruling
The admission gate conforms to the design. It refuses a value that the built-in root excludes, and it refuses a type with no built-in root (lines 340, 1234 and 1264). The new default for a spec with no box.type breaks two test fixtures. Each fixture sends a session spec with the PTY off, and line 1216 forbids that spec. Fix the fixtures in C1 and C2, and do not relax the gate. The PR's own Verify run fails on the C2 fixture. C3 names the issue for the exit-3 code that min does not get yet.
Outside the diff
crates/minimald/src/box_manager/tests.rs:3457: C1 · This spec has nobox.typeand setspty_enabledto false under the Session verb. The gate now refuses it as asession(line 1216). Add"type": "agent"to theboxtable in both arms.crates/minimald/src/box_actor/tests.rs:18010: C2 ·until_stopped_spec(false)builds asessionspec with the PTY off, and line 1216 forbids that spec. Whenpty_enabledis false, setspec.box_typetoservice. The PR's Verify run fails on this fixture.
Ruled at af4ddf5 against gominimal/arch@15b603e6afb8 by claude-opus-5-5.
| // refusal comes before the record exists, so it leaves nothing. | ||
| // A spec with no `box.type` is checked as the type the creating | ||
| // verb files the box under, so leaving the type out skips nothing. | ||
| let verb_type = match config.creating_verb { |
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C1 · This default is correct. A spec with no box.type now checks as the verb's type. It also refuses fixtures that send a no-PTY spec under the Session verb, for example show_and_list_replies_carry_lifetime. Keep this default and fix the fixtures (C1, C2).
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Addressed in 177a16c1cc8a: Kept the verb-type default. Moved the no-terminal fixtures in box_manager/tests.rs (show_and_list_replies_carry_lifetime and others) to the task verb through an as_task helper. Three box_actor fixtures with the same fault are outside this task's files, and the notes name them.
| root = %refusal.root, | ||
| key = %refusal.key, | ||
| value = %refusal.value, | ||
| exit_code = refusal.exit_code(), |
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C3 · The log records exit_code=3. rpc.rs sends only the text, so min does not exit 3. Name the issue for this gap in the PR body as a residual (C3).
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Disputed — not addressed: The gap is real, but the fix is in crates/minimald/src/rpc.rs, minimald-rpc and crates/minimal/src/main.rs, which are outside this task's files. I cannot file an issue. The result notes record it as a residual that needs an issue number in the PR body.
A built-in box.type is its own root. A spec that names a different type.root is refused with exit 3, so a task spec cannot claim the session root and keep a terminal.
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Round 2 of 10 on the runtime's review findings, pushed as
Verify Review threads the coder judged:
The daemon refuses a create whose spec breaks the constraints of its type's built-in root. The refusal names the type, the root and the key. A built-in box.type is now its own root, so a task spec that sets type.root = "session" is refused and does not get the session constraints. Notes from the agent: Round 2. C1 is fixed: spec_type_root takes a built-in box.type as its own root and refuses a different type.root with UnknownRootRefusal (new field builtin_type). The daemon log line for that refusal now reads "the box spec does not name its type's built-in root". C3 still needs a person: the wire change that carries exit 3 to min is in rpc.rs, minimald-rpc and crates/minimal/src/main.rs, outside this task's layers. I have no credential to file the issue. clippy-strict was not run. |
| // BOX-160: the daemon re-checks the spec against its root's | ||
| // constraints at admission, whatever the client checked. The | ||
| // refusal comes before the record exists, so it leaves nothing. | ||
| // A spec with no `box.type` is checked as the type the creating | ||
| // verb files the box under, so leaving the type out skips nothing. | ||
| let verb_type = match config.creating_verb { | ||
| minimald_rpc::CreatingVerb::Session => boxes::SESSION_BOX_TYPE, | ||
| minimald_rpc::CreatingVerb::Task => boxes::TASK_BOX_TYPE, | ||
| }; | ||
| let session_name = config | ||
| .name | ||
| .as_deref() | ||
| .unwrap_or(crate::rpc::ANONYMOUS_SESSION); | ||
| match spec | ||
| .as_ref() | ||
| .map(|spec| root_constraint_refusal(spec, verb_type)) | ||
| { | ||
| Some(Err(AdmissionRootRefusal::Constraint(refusal))) => { | ||
| span.record("refusal", tracing::field::display(&refusal)); | ||
| tracing::info!( | ||
| session_name, | ||
| box_type = %refusal.box_type, | ||
| root = %refusal.root, | ||
| key = %refusal.key, |
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HIGH · correctness · confidence 0.50 · in create_session
The check reads the type from the spec's box.type. The record is filed under the type of config.creating_verb (see box_type near line 4448). Nothing makes them agree. A create through the session verb with a spec that sets box.type = "task" and io.pty_enabled = false passes the task root. The daemon then files a session box that breaks the session root's constraint. The client controls both fields, so the admission re-check can be skipped. Refuse a spec whose built-in box.type differs from the verb type, or check the constraints of the verb type as well.
What the reviewer checked
verb_type is only the fallback when box.type is absent (
.map_or_else(|| verb_type.to_owned(), text)); the record usesmatch config.creating_verb { Session => SESSION_BOX_TYPE, Task => TASK_BOX_TYPE }with no comparison.
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Act on a code-review finding.
File: crates/minimald/src/box_manager.rs
Lines: 4310-4333
Category: correctness
Severity: high (reviewer confidence 0.50)
Finding:
The check reads the type from the spec's `box.type`. The record is filed under the type of `config.creating_verb` (see `box_type` near line 4448). Nothing makes them agree. A create through the session verb with a spec that sets `box.type = "task"` and `io.pty_enabled = false` passes the task root. The daemon then files a `session` box that breaks the session root's constraint. The client controls both fields, so the admission re-check can be skipped. Refuse a spec whose built-in `box.type` differs from the verb type, or check the constraints of the verb type as well.
First verify this against the code yourself. It is model output and
may be wrong. If it is wrong, or the tradeoff was deliberate, say so
and change nothing.
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Addressed in 177a16c1cc8a: root_constraint_refusal now also checks the spec against the built-in root of the creating verb's type. A task spec with no terminal under the session verb is now refused (test case rc-task-as-session).
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arch-review: CONDITIONS · 2 conditions · the full ruling
The admission gate conforms to the design. It also refuses a built-in type that names a different type.root, which §6.3.2 line 672 requires. This head breaks existing tests. They create a session box with pty off, and the shipped-types table (line 1216) forbids that. Fix those fixtures as C1 says, and do not relax the gate. The refusal does not reach min as exit 3 (Exit codes, line 364). File an issue for this and name it in the PR body (C2).
Ruled at 12ceca4 against gominimal/arch@15b603e6afb8 by claude-opus-5-5.
| exit_code = refusal.exit_code(), | ||
| "refused a create: the box spec carries a value its type's built-in root excludes" | ||
| ); | ||
| return Err(std::io::Error::new( |
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C2 · This error carries exit 3 only in the daemon log. rpc.rs sends the text and drops the code, so min exits with its generic code. Exit codes line 364 gives 3 to an invalid Box Spec. File an issue for the wire change and name it in the PR body.
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Addressed in f828cd3f4629: Filed as #3313. A comment beside the refusal names it, and the PR body names it as a residual.
| refusal, | ||
| )); | ||
| } | ||
| // BOX-160: the daemon re-checks the spec against its root's |
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C1 · This gate is correct. It refuses a session spec with pty off, as shipped-types line 1216 requires. Existing tests send that spec: until_stopped_spec(false) in box_actor/tests.rs and show_and_list_replies_carry_lifetime in box_manager/tests.rs. Give those fixtures a task type. Do not change this check.
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Addressed in f828cd3f4629: The check is unchanged. The no-terminal fixtures in box_actor/tests.rs and crates/minimal/src/tests.rs now create task boxes.
The daemon files the record under the creating verb's type, whatever box.type says. A spec now also passes the constraints of that type, so a task spec cannot pass as task and be filed as a session. The test fixtures that send a no-terminal spec now use the task verb.
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Round 3 of 10 on the runtime's review findings, pushed as
Verify Review threads the coder judged:
minimald refuses a create whose spec carries a value that its type's built-in root excludes. It also refuses a spec that breaks the constraints of the type the creating verb files the box under. An example is a Notes from the agent: Revise round 3. The admission check now also checks the spec against the built-in root of the creating verb's type, because the record is filed under that type. The box_manager test fixtures that send a no-terminal spec now use the task verb, through a new as_task helper. A new admission case covers a task spec under the session verb. Outside the layers, not changed: three box_actor tests fail, and they failed at the previous branch head too. They send a Residual (C3): the refusal logs exit_code=3, but the InvalidInput arm in crates/minimald/src/rpc.rs sends only the text, so One full |
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The runtime will not revise this pull request again on its own: the diff is +627/-21 (648 lines), past 3x the plan's estimate of 180 lines (est: 120 code, 60 tests, as #2426 reads now), at round 3 (the last trigger was the runtime's review findings). A person decides now. Remove |
| match spec | ||
| .as_ref() | ||
| .map(|spec| root_constraint_refusal(spec, verb_type)) | ||
| { |
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MEDIUM · correctness · confidence 0.85 · in create_session
The new admission check refuses session specs with pty_enabled = false. Nine tests in crates/minimald/src/box_actor/tests.rs build exactly such specs through until_stopped_spec(false) and resume_spec(false). The PR updates only box_manager/tests.rs. The verify log in the PR body shows restart_start_failure_leaves_box_stopped_with_its_stop_recorded failing with this refusal. The test run stopped at that failure, so more tests can fail. Update these fixtures in this PR, or the suite stays red.
What the reviewer checked
PR body: panicked at crates/minimald-rpc/src/lib.rs:76:41: The box spec sets
io.pty_enabledtofalse. A box of the built-in typesessionallows onlytrue. box_actor/tests.rs:18010spec.pty_enabled = pty_enabled;withuntil_stopped_spec(false)at 18232, 18240, 18248, 18281, 18313, 18340;resume_spec(false)at 16396, 16401.
Hand this to an agent
Act on a code-review finding.
File: crates/minimald/src/box_manager.rs
Lines: 4342-4345
Category: correctness
Severity: medium (reviewer confidence 0.85)
Finding:
The new admission check refuses session specs with `pty_enabled = false`. Nine tests in `crates/minimald/src/box_actor/tests.rs` build exactly such specs through `until_stopped_spec(false)` and `resume_spec(false)`. The PR updates only `box_manager/tests.rs`. The verify log in the PR body shows `restart_start_failure_leaves_box_stopped_with_its_stop_recorded` failing with this refusal. The test run stopped at that failure, so more tests can fail. Update these fixtures in this PR, or the suite stays red.
First verify this against the code yourself. It is model output and
may be wrong. If it is wrong, or the tradeoff was deliberate, say so
and change nothing.
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Addressed in f828cd3f4629: resume_spec(false) and until_stopped_spec(false) build task specs, and their creates use the new create_task_with_spec. The minimald suite passes except three env.rs tests that fail only because this box sets MINIMAL_OTEL=off.
| let (key, root) = match type_root { | ||
| Some(root) => ("type.root", root), | ||
| None => ("box.type", box_type.clone()), | ||
| }; | ||
| match mfile::box_types::builtin(&root) { | ||
| Some(root) => Ok((box_type, root)), | ||
| None => Err(UnknownRootRefusal { | ||
| key, | ||
| value: root, | ||
| builtin_type: None, | ||
| }), | ||
| } |
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LOW · correctness · confidence 0.60 · in spec_type_root
A spec whose box.type is not built in and that has no type.root is refused here with UnknownRootRefusal. The PR body says such a spec passes until the projection sends type.root. The code and the description disagree. The spec does not carry type.root yet, so this refuses every project-type create that reaches the daemon. Today the min client refuses unsupported types first, which hides the problem. Pick one behaviour and make the code, the doc comment and the PR body agree.
What the reviewer checked
box_manager.rs spec_type_root:
None => ("box.type", box_type.clone())thenbuiltin(&root)returns None, soErr(UnknownRootRefusal{..}). PR body: 'A spec whose type is not built-in and that sends notype.roothas no root to check, so it passes.'
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Act on a code-review finding.
File: crates/minimald/src/box_manager.rs
Lines: 1526-1537
Category: correctness
Severity: low (reviewer confidence 0.60)
Finding:
A spec whose `box.type` is not built in and that has no `type.root` is refused here with `UnknownRootRefusal`. The PR body says such a spec passes until the projection sends `type.root`. The code and the description disagree. The spec does not carry `type.root` yet, so this refuses every project-type create that reaches the daemon. Today the `min` client refuses unsupported types first, which hides the problem. Pick one behaviour and make the code, the doc comment and the PR body agree.
First verify this against the code yourself. It is model output and
may be wrong. If it is wrong, or the tradeoff was deliberate, say so
and change nothing.
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Disputed — not addressed: Refusing is deliberate (an earlier round chose it). The code and the spec_type_root doc comment already agree: a project type with no type.root is refused. Only the PR body was out of date, and it now says the same.
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arch-review: CONDITIONS · 3 conditions · the full ruling
The admission check is in the right place and fails closed. Test fixtures outside box_manager/tests.rs still create boxes that the shipped-types table forbids, and the check now refuses them. The suite is red at this head. C1 fixes the box_actor/tests.rs fixtures, and C2 fixes entry_req in rpc.rs. Change the fixtures, not the check. C3 files the exit code 3 that the wire does not carry yet, and names the issue.
Ruled at 177a16c against gominimal/arch@15b603e6afb8 by claude-opus-5-5.
| // refusal comes before the record exists, so it leaves nothing. | ||
| // A spec with no `box.type` is checked as the type the creating | ||
| // verb files the box under, so leaving the type out skips nothing. | ||
| let verb_type = match config.creating_verb { |
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C1 · This check refuses the session-verb creates in box_actor/tests.rs that carry pty_enabled = false. The shipped-types table (line 1216) allows only true for session. Move those fixtures to the task verb, or set pty_enabled = true where a terminal does not matter.
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Addressed in f828cd3f4629: The session-verb creates with pty_enabled = false in box_actor/tests.rs now use the task verb and a task spec.
| spec_type_root(spec, verb_type).map_err(AdmissionRootRefusal::UnknownRoot)?; | ||
| builtin_root_refusal(spec, box_type, root)?; | ||
| match mfile::box_types::builtin(verb_type) { | ||
| Some(verb_root) if verb_root != root => { |
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C2 · This verb-root check refuses entry_req in rpc.rs. That helper sends a task spec with no terminal under the default session verb. Set creating_verb = Task in entry_req.
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Addressed in f828cd3f4629: entry_req in rpc.rs now sets creating_verb = CreatingVerb::Task.
| "refused a create: the box spec carries a value its type's built-in root excludes" | ||
| ); | ||
| return Err(std::io::Error::new( | ||
| std::io::ErrorKind::InvalidInput, |
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C3 · rpc.rs sends this InvalidInput error as text, so min does not exit 3. File the issue that carries the code over the wire. Name it here and in the PR body, as rpc.rs line 686 names #3276.
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Addressed in f828cd3f4629: Both InvalidInput returns in create_session have a comment that names #3313. The PR body names it as a residual.
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/revise Arch conditions (arch_rulings 1191, ruled at 177a16c), in full:
C3 is filed as #3313. Name it in the PR body and in the two comments. Also, CI |
The admission check refuses a session spec with no terminal. The box_actor and rpc fixtures now create those boxes as tasks. The two refusals in create_session name #3313 for the missing exit code.
A box with no terminal is created under the task verb. A test that needs a session with no terminal, or a task with one, stores that spec after an allowed create, as a record from before the check.
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Round 4 of 10 on a /revise note, pushed as
Verify Outside the task's
Converted to a draft: 10BC8 something above needs a person before review. Review threads the coder judged:
The daemon refuses a create whose box spec breaks its built-in root's constraints, for example a session with no terminal, and the refusal leaves no record. The minimald and minimal test suites now create only boxes that the check allows, so the check stays as it is and the suites pass. Notes from the agent: Revise round 4. C1: box_actor/tests.rs has a new create_task_with_spec helper. resume_spec(false) and until_stopped_spec(false) now build a task spec, and their five creates use the task verb. C2: entry_req in rpc.rs sets creating_verb = Task. C3: the two InvalidInput returns in create_session name #3313 in a comment. Name #3313 in the PR body as a residual: the refusal is exit 3 in the daemon log only, and min exits 1. CI failures in crates/minimal: create_attach_box uses the task verb for a box with no terminal. Five session-attach tests need a session with no terminal or a task with a terminal. The admission check refuses both. The new AttachHost::create_stored helper creates an allowed box and then rewrites its spec.json, as a record stored before the check. The admission check is not relaxed. Out of the layers, at the directive's request: box_actor/tests.rs, rpc.rs (test module only), crates/minimal/src/tests.rs. PR body correction for thread PRRT_kwDOPdfcxM62iZWJ: a spec whose box.type is not built-in and that has no type.root is refused (exit 3). It does not pass. The code and the doc comment on spec_type_root already say this. a_stopped_vm_does_not_hold_a_listing failed once in a full run and passed alone and in the next full run. It is a flake. |
| fn root_constraint_refusal( | ||
| spec: &serde_json_lenient::Value, | ||
| verb_type: &str, | ||
| ) -> Result<(), AdmissionRootRefusal> { | ||
| let (box_type, root) = | ||
| spec_type_root(spec, verb_type).map_err(AdmissionRootRefusal::UnknownRoot)?; | ||
| builtin_root_refusal(spec, box_type, root)?; | ||
| match mfile::box_types::builtin(verb_type) { | ||
| Some(verb_root) if verb_root != root => { |
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LOW · correctness · confidence 0.50 · in root_constraint_refusal
When the verb-type second check refuses, the refusal names the verb type as the box type. The spec can name another type, such as box.type = "task" under the session verb. The user then reads 'A box of the built-in type session' and cannot see why. The refusal must say the verb filed the box under that type.
What the reviewer checked
builtin_root_refusal(spec, verb_root.to_owned(), verb_root) reuses the Display that prints the type as box_type.
Hand this to an agent
Act on a code-review finding.
File: crates/minimald/src/box_manager.rs
Lines: 1604-1612
Category: correctness
Severity: low (reviewer confidence 0.50)
Finding:
When the verb-type second check refuses, the refusal names the verb type as the box type. The spec can name another type, such as `box.type = "task"` under the session verb. The user then reads 'A box of the built-in type `session`' and cannot see why. The refusal must say the verb filed the box under that type.
First verify this against the code yourself. It is model output and
may be wrong. If it is wrong, or the tradeoff was deliberate, say so
and change nothing.
👍 useful · 👎 noise — react to tell the reviewer. Replying works too, and says more.
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arch-review: PASS_WITH_CONDITIONS · 1 condition · the full ruling
The admission check conforms to principle 9 and the shipped-types constraints. It runs in minimald before the record exists, and it refuses a spec that names no built-in root. One part of BOX-160 stays open. The reply over the wire does not carry exit code 3, so min exits 1. C1 tracks that gap as #3313, and it can stay open at merge.
Ruled at f828cd3 against gominimal/arch@15b603e6afb8 by claude-opus-5-5.
| exit_code = refusal.exit_code(), | ||
| "refused a create: the box spec carries a value its type's built-in root excludes" | ||
| ); | ||
| // The reply carries the refusal's text but not its code, |
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C1 · This refusal has exit code 3, but the reply does not carry the code. min exits 1. Issue #3313 tracks the fix in rpc.rs, minimald-rpc and main.rs. Remove this comment when that change merges.
T24 — Re-check the built-in root's constraints at admission
slice: S5
kind: task
covers: BOX-160
size: S
est: 120 code, 60 tests
executor: agent
difficulty: needs care
model: standard
diagnostics: daemon log names each refused admission
observability: create span records refusal
layers:
- daemon:
- crates/minimald/src/box_manager.rs: admission root check
- crates/minimald/src/box_manager/tests.rs: tests
test: cargo nextest run -p minimald admission_refuses_spec_breaching_builtin_root_constraint_exit3
produces: none
consumes: none
proof: The daemon refuses a spec breaking its root's constraints.
depends on:
- blocked by #2424
Proof
minimald refuses a create whose box spec breaks the constraints of its type's built-in root. Examples are a task spec with io.pty_enabled = true, a session spec with pty off, a project type with type.root = task and a terminal, and a build spec with nesting.allowed = true. The refusal names the type, its root and the key, carries exit code 3, and files no record. The daemon log line and the box.create span record each refusal.
Notes from the agent: The refusal is a RootConstraintRefusal in an InvalidInput io::Error. Its exit_code() is 3, and the daemon log records exit_code=3. rpc.rs sends the text of an InvalidInput error to the client, but not the code, so
minexits with its generic code and not 3. To carry exit 3 on the wire, a later task must change crates/minimald/src/rpc.rs, minimald-rpc and crates/minimal/src/main.rs. These files are outside this task's layers, as they are for the BOX-081 refusal (#3276). The spec does not carrytype.rootyet. The check readstype.rootwhen it is present, else it usesbox.typewhen that type is built-in. A spec whose type is not built-in and that sends notype.roothas no root to check, so it passes. A client can use this to skip the check, until the projection sendstype.root. minimald has notomldependency, so the check serializes mfile::box_types::builtin_constraints to JSON and compares the values in JSON. A flat constrained key is checked at the top level and under each spec section (box, execution, install, io, nesting, network). Other runs: all 132 tests undercargo nextest run -p minimald box_manager::passed, andcargo clippy -p minimald --all-targetsis clean.Tests
cargo nextest run -p minimald admission_refuses_spec_breaching_builtin_root_constraint_exit3Verify
min task run agent-verifyexited 100 under rustc 1.99.0, which the repository does not pin (1.99.1 in rust-toolchain.toml); the PR is not a draft on that alone — CI, which honours the pin, is the gate.Closes #2426