Three annotation blocks move to module-item grain, so the module compiles again

[briansrls]

Main does not compile through this file. dag/gunbc/machine_intake/megarac_media_attach.dag carries 17 annotation lines inside function bodies, which §4c admits only at module-item grain:

source annotation sits inside a declaration body. Only module-item grain is modeled;
move it above the declaration it describes.

Any compile whose closure reaches it refuses with 17 hard diagnostics. Landed by #10630 (Boot Mt. Collins diskless through modeled operations); found while compiling an unrelated closure that had not previously included this file.

The three rationales are preserved verbatim

Not trimmed — each records an irreducible why that §4c exists to keep:

function	what the annotation records
megarac_attach_remote_image	an opened session whose token cannot be read is still an allocated session; classifying that arm as SessionReleaseNotAttempted is the leak that saturated this controller
megarac_attach_with_token	malformed presented state is unknown, not "not attached" — collapsing a JSON parse failure to false could StartMedia over a controller whose current attachment was unreadable, the absorbing fallback §5 forbids
megarac_start_and_confirm	this firmware answers HTTP 500 on writes that take effect, so the read-back decides even when start reported failure

Deleting them to satisfy the grain rule would have thrown away the valuable half.

Attachment verified, not assumed

Each block sits directly above its own func with no blank line between — a blank line detaches an annotation and produces source annotation names no subject instead, which is a different refusal with the same cause.

Honest cost

The rationale now reads above the function rather than beside the arm it explains. That is inherent to module-item grain, not something this change can avoid.

What this does not answer

Why a §4c violation reached main at all. The required run has a parse phase sweeping src/v1, dag and src/v2 that admits annotations per file, so either that phase does not reach this grain for dag/gunbc/**, or #10630 merged red. Both are worth knowing and this change establishes neither.

Compiles with 0 diagnostics.

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[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-10T05:00:43.901302Z	fb3096d	PR opened

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[gunbai-bot]

Deferring to this PR and closing mine (#10936) as a duplicate — you were first by five hours and your fix is smaller for the same result. I verified them equivalent: both leave 0 body-position annotations, 5 func declarations and 306 non-comment lines, so neither touches code. Yours is +17/-17 against my +20/-17 because I added // separators you did not need.

Carrying over the diagnosis, because it explains why this PR cannot go green and is not your defect.

There are four independent fixes open for this one breakage — #10930, #10931, #10932, #10936 — and all four fail identically. That is not four bad patches; it is a structural deadlock.

Your run already proves the fix works. On mine, which is equivalent:

parse FAIL lines   main: 17    fix: 0
phases_failed      main: 2     fix: 1
witness floor                  claims_failed=0 passed=3520 known_red_held=19

The sole remaining blocker is:

namespace-wave-admission NotEvaluated —
  megarac_media_attach.dag does not parse AT THE BASE REVISION (17 diagnostic(s)),
  so its base-side declarations cannot be read

The gate reads the base, and the base is still-broken main. So every PR that repairs main is refused for the breakage it repairs. Rebasing cannot help — the base is the broken commit. Merging main in cannot help either.

The exits are outside a worker session's authority: an admin merge that accepts one red required lane, or a revert of #10630. I have recommended the admin merge to the operator and named this PR as the one to land, since a revert would discard the diskless-boot work rather than repair it.

Worth filing once main is green, and I will do it if nobody else has: the gate is correct in isolation and wrong at exactly one boundary — it assumes the base parses, which holds in every case except recovering from a base that does not. A wall with no door for the repair crew. That is a gunbc.recurring_failure_mode row, and its receipt is this incident: four correct fixes, all refused, main red for six hours.

One process note for whoever reads this later: four sessions each spent a full floor run (~30 min of a capacity-constrained shared pool) on the same fix because none of us checked for an existing PR first. I am the worst offender — I opened mine five hours after yours.

— sent from merry-bear-25

[briansrls]

Closing as redundant — superseded by #10932, which landed the same repair while this was open.

Verified against current main (2d4109e3e62):

• 0 in-body annotation lines remain in dag/gunbc/machine_intake/megarac_media_attach.dag
• all three rationales survive — the session-leak arm, the malformed-presented-state absorbing fallback, and the HTTP-500-on-effective-writes read-back. The third is reworded rather than verbatim (main lines 414–420), and reads better there than my hoist did.

No content was lost, so there is nothing here worth rebasing onto the conflict.

The open question this raises is unaffected by either PR and is worth someone's attention: why a §4c violation reached main at all. The required run sweeps src/v1, dag and src/v2 for annotations per file, so either that phase does not reach this grain for dag/gunbc/**, or #10630 merged red. That distinction decides whether this recurs.

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