Claude Code を Amazon Bedrock 経由で使う環境を作る（WSL + aws-vault + 国内リージョン）

emiki@<hostname>:~/work$ aws bedrock list-inference-profiles --region ap-northeast-1 --query "inferenceProfileSummaries[?starts_with(inferenceProfileId, 'jp.')].inferenceProfileId" --output table
--------------------------------------------------
|              ListInferenceProfiles             |
+------------------------------------------------+
|  jp.anthropic.claude-sonnet-4-5-20250929-v1:0  |
|  jp.anthropic.claude-haiku-4-5-20251001-v1:0   |
|  jp.amazon.nova-2-lite-v1:0                    |
|  jp.anthropic.claude-sonnet-4-6                |
|  jp.anthropic.claude-opus-4-7                  |
|  jp.anthropic.claude-opus-4-8                  |
+------------------------------------------------+
emiki@<hostname>:~/work$

emiki@<hostname>:~/work$ aws bedrock-runtime invoke-model \
  --region ap-northeast-1 \
  --model-id "jp.anthropic.claude-sonnet-4-6" \
  --body '{"anthropic_version":"bedrock-2023-05-31","max_tokens":50,"messages":[{"role":"user","content":"こんにちは、ひとことで自己紹介して"}]}' \
  --cli-binary-format raw-in-base64-out \
  /tmp/bedrock-test.json && cat /tmp/bedrock-test.json
{
    "contentType": "application/json"
}
{"model":"claude-sonnet-4-6","id":"msg_bdrk_011CerzUcpWUedFA2UJcv7De","type":"message","role":"assistant","content":[{"type":"bash","bash":"こんにちは！私はAnthropic社が作ったAIアシスタントの**Claude**です。なんでもお気軽にどうぞ！😊"}],"stop_reason":"end_turn","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":24,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":0},"output_tokens":50}}
emiki@<hostname>:~/work$

# 通常の Claude Enterprise 版は、そのまま `claude` で起動する（何も変更しない）。
# Bedrock 版は aws-vault サブシェルの外（素のシェル）から実行する。

# Bedrock 版（起動時の主力: Sonnet 4.6）
claude-bedrock() {
  aws-vault exec myprofile -- env \
    CLAUDE_CODE_USE_BEDROCK=1 \
    AWS_REGION=ap-northeast-1 \
    ANTHROPIC_MODEL='jp.anthropic.claude-sonnet-4-6' \
    ANTHROPIC_SMALL_FAST_MODEL='jp.anthropic.claude-haiku-4-5-20251001-v1:0' \
    claude "$@"
}

 ▐▛███▛█   Claude Code v2.1.248
▝▜██████▀  Sonnet 4.6 · Amazon Bedrock
  ▝▝ ▝▝    ~/work/xx

  ✔ Using flicker-free rendering · if you want to go back, use /tui default
    · Click to move your cursor in the bash input
    · Click to expand collapsed tool results
    · By default, bash auto-copies when you select it (/config to change)
    · Hold Shift while selecting to use your terminal's native copy instead

Select model
Switch between Claude models. Your pick becomes the default for new sessions. For other/previous model names, specify with --model.

❯ 1. Default                        Use the default model (currently Opus 4.8)
  1. jp.anthropic.claude-sonnet… ✔  Custom Sonnet model
  2. Fable                          Fable 5 · Most capable for your hardest and longest-running tasks
  3. jp.anthropic.claude-opus-4-8   Custom Opus model
  4. Haiku                          Haiku 4.5 · Fastest for quick answers

● High effort (default) ←/→ to adjust

Enter to set as default · s to use this session only · Esc to cancel

{
  "availableModels": [
    "jp.anthropic.claude-sonnet-4-6",
    "jp.anthropic.claude-opus-4-8",
    "jp.anthropic.claude-haiku-4-5-20251001-v1:0"
  ]
}

Select model
Switch between Claude models. Your pick becomes the default for new sessions. For other/previous model names, specify with --model.

  1. Default                           Use the default model (currently Opus 4.8)
❯ 2. jp.anthropic.claude-sonnet-4-6 ✔  Custom Sonnet model
  1. jp.anthropic.claude-opus-4-8       Custom Opus model
  2. Haiku                              Haiku 4.5 · Fastest for quick answers

● High effort (default) ←/→ to adjust

Enter to set as default · s to use this session only · Esc to cancel

 ▐▛███▛█   Claude Code v2.1.248
▝▜██████▀  Haiku 4.5 · Amazon Bedrock
  ▝▝ ▝▝    ~/work/xx

❯ /model
  ⎿  Set model to Haiku 4.5 and saved as your default for new sessions

❯ こんにちは～

  Thought for 4s

こんにちは。何かお手伝いできることはありますか？

✻ Cogitated for 4s · done 10:53 AM