Stage B2. Coding: pilot

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What it produces: the scheme tested on fresh readers, tightened, frozen. Model: build and check: arm.json; dispatch: the routine readers on the reader route, no orchestrator model. (From the contract's stage table, section 4.)

Status: finished. the card · the stage file · the handback

Steps: B2a build round; B2b check round; B2c gold and stability build; B2d gold and stability check

B2a-r1 · build round

Closed 2026-10-11T15:14:49Z; closed at packets-out; 4570 out files; tokens in 108423597, out 384112 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2a-r1-d067ff6e-d12f-4e87-80d1-87c707a804a8.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2b-r1 · check round

Closed 2026-10-11T19:26:15Z; closed; 4691 out files; tokens in 180330520, out 333112 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2b-r1-fd679c34-efee-4e9e-b914-f001465a1807.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2a-r2 · build round

Closed 2026-10-11T19:50:47Z; closed at packets-out; 4744 out files; tokens in 90970735, out 210676 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2a-r2-90ab0827-59ef-4db0-81e4-e7120fc40c63.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2b-r2 · check round

Closed 2026-10-12T05:01:35Z; closed at packets-out; 4815 out files; tokens in 41666834, out 109975 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2b-r2-p2-441ecb71-d5da-4a46-93b1-9439b91cead5.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2b-r2-p2 · check round

Closed 2026-10-12T08:41:32Z; closed; 4931 out files; tokens in 263424349, out 641565 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2b-r2-p2-441ecb71-d5da-4a46-93b1-9439b91cead5.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2a-r3 · build round

Closed 2026-10-12T08:46:03Z; closed at packets-out; 4973 out files; tokens in 36423601, out 28928 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2a-r3-p2-440ce776-cc78-49ad-873c-3bc68d2bf75f.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2a-r3-p2 · build round

Closed 2026-10-12T10:20:10Z; closed at packets-out; 5018 out files; tokens in 29297618, out 89712 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2a-r3-p2-440ce776-cc78-49ad-873c-3bc68d2bf75f.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2b-r3 · check round

Closed 2026-10-12T12:17:59Z; closed; 5181 out files; tokens in 18766700, out 160099 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2b-r3-p3-f603632e-7ce6-4e3f-9d92-5ef3c5d4dc59.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2b-r3-p2 · check round

Closed 2026-10-12T12:21:41Z; closed; 5190 out files; tokens in 3659293, out 10822 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2b-r3-p2-97886f56-4850-4ddd-9a8c-c4d9513c5099.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2b-r3-p3 · check round

Closed 2026-10-12T12:45:14Z; closed; 5226 out files; tokens in 87680323, out 249458 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2b-r3-p3-f603632e-7ce6-4e3f-9d92-5ef3c5d4dc59.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2c · gold and stability build

Closed 2026-10-12T13:12:20Z; closed at packets-out; 5325 out files; tokens in 28994198, out 73489 (summed over every turn of the leg).

the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2c-5f791fdc-b712-4628-9b54-653e0f5eb0cc.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit

B2d · gold and stability check

Closed 2026-10-12T14:09:45Z; closed; 5470 out files; tokens in 101246072, out 205903 (summed over every turn of the leg).

the checkpoint · the transcript

Talk with the analyst as it was at the end of this leg (a read-only fork; your account's usage; the transcript in the repository is not changed; what this command does):

cd "$(git rev-parse --show-toplevel)/aggregator/runs/claude-v43-1/00_GIVE-THE-AGENT" && claude --resume "$PWD/out/_transcripts/leg-B2.B2d-d433cda9-cef1-43aa-922b-208cb50bcf31.jsonl" --fork-session --permission-mode plan --model claude-opus-5-5 --effort medium --strict-mcp-config --disallowedTools Bash Write Edit MultiEdit NotebookEdit