# BEFORE: main e9236274a3. Dev server launched with host Claude Code session vars (fake values): CLAUDECODE=1 CLAUDE_CODE_ENTRYPOINT=claude-desktop CLAUDE_CODE_SESSION_ID=0000...0001 CLAUDE_CODE_MESSAGING_SOCKET=/tmp/.../fake.sock CLAUDE_EFFORT=high CLAUDE_PID=1
## env of the claude spawned for a thread turn (wrapper binaryPath)
CLAUDECODE=1
CLAUDE_AGENT_SDK_VERSION=0.3.276
CLAUDE_CODE_CHILD_SESSION=1
CLAUDE_CODE_ENABLE_TELEMETRY=1
CLAUDE_CODE_ENHANCED_TELEMETRY_BETA=1
CLAUDE_CODE_ENTRYPOINT=claude-desktop
CLAUDE_CODE_EXECPATH=/usr/local/nvm/versions/node/v24.21.0/lib/node_modules/@anthropic-ai/claude-code/bin/claude.exe
CLAUDE_CODE_MESSAGING_SOCKET=/tmp/issue-lead-25959-r1/fake.sock
CLAUDE_CODE_MESSAGING_TOKEN=<redacted>
CLAUDE_CODE_SESSION_ATTENDED=0
CLAUDE_CODE_SESSION_ID=00000000-0000-4000-8000-000000000001
CLAUDE_CONFIG_DIR=/tmp/issue-lead-25959-r1/claudehome
CLAUDE_EFFORT=high
CLAUDE_PID=1

## per-thread request shapes (first-request tool list hash, tool count, MCP servers) and (cacheWrite, cacheRead) per API request
## A1-A3: slow stdio MCP server, fixed 3s connect; B1-B4: jittered 0.5-4s connect; C1-C4: same jitter + instance env MCP_CONNECTION_NONBLOCKING=false (rows in start order)
A1 13:31:12 4eb5541c req shapes: [('d68b4998', 91, ['t3-code']), ('4681becd', 99, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(52365, 0), (53232, 0), (135, 53232)]
A2 13:31:55 de496961 req shapes: [('d68b4998', 91, ['t3-code']), ('4681becd', 99, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52365), (0, 53232), (0, 53367)]
A3 13:32:14 ec65d607 req shapes: [('d68b4998', 91, ['t3-code']), ('4681becd', 99, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52365), (0, 53232), (0, 53367)]
B1 13:33:20 cccbb082 req shapes: [('94e1d756', 98, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(52691, 0), (179, 52691), (135, 52870)]
B2 13:33:35 53fcd628 req shapes: [('d68b4998', 91, ['t3-code']), ('4681becd', 99, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52365), (3652, 49581), (135, 53233)]
B3 13:33:48 b935b39f req shapes: [('d68b4998', 91, ['t3-code']), ('4681becd', 99, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52365), (0, 53232), (0, 53367)]
B4 13:34:02 20061238 req shapes: [('d68b4998', 91, ['t3-code']), ('4681becd', 99, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52365), (0, 53232), (0, 53367)]
C1 13:34:32 878f59cd req shapes: [('94e1d756', 98, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52691), (182, 52691), (135, 52873)]
C2 13:34:46 8eaf53b6 req shapes: [('94e1d756', 98, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52691), (0, 52873), (0, 53008)]
C3 13:35:03 69e611e8 req shapes: [('94e1d756', 98, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52691), (0, 52870), (0, 53005)]
C4 13:35:24 b8c4b882 req shapes: [('94e1d756', 98, ['slow', 't3-code'])] | (cacheWrite,cacheRead) per req: [(0, 52691), (0, 52870), (0, 53005)]