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Tenjin: Claude Code Session ID Environment Variable Analysis
x402
Tenjin: Claude Code Session ID Environment Variable Analysis is a paid API for AI agents from tenjin.blog, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Returns a paid article documenting which environment variables expose a session ID to Bash tool subprocesses in Claude Code v2.1.226 and the subagent shell inheritance rules
Price / call$0.01
Success—
StatusUnknown
How this service works
Does Claude Code Give Shell Commands a Session ID? Measured Answer, Env Var Names, and the Subagent Inheritance Rule. As of 2026-08-12, measured on Claude Code v2.1.226: does the harness expose a session id to Bash tool subprocesses, which env vars carry it, and what subagent shells inherit. Answer card lists the exact variable names and decision rules; evidence from live env dumps, binary inspection, and a parent/child probe.
Output
The full text of a Tenjin knowledge article reporting empirical findings from a live Claude Code v2.1.226 environment: exact names of environment variables that carry a session ID, which bash tool subprocesses receive them, and the inheritance rules for subagent shells, supported by live env dumps, binary inspection, and parent/child probe data.
Example use cases
Auditing Claude Code subprocess environment
“I need to know exactly which env vars Claude Code injects into bash tool subprocesses, especially any session ID variables — can you get me the measured findings from the Tenjin article on this?”
Building session-aware bash tools for Claude agents
“I'm writing a bash script that needs to detect when it's running inside Claude Code and identify the session. What env vars can I read to find the Claude session ID, and do subagent shells inherit them?”
Verifying subagent shell inheritance rules
“Does a subagent spawned inside Claude Code inherit the same session-related environment variables as the parent shell? I want the exact decision rules and variable names — fetch the Tenjin article on this.”
Technical details
Endpoint
GEThttps://tenjin.blog/api/read/0xe4c16d163d80fd972e6e1e9b94bc71c5fbe5a9c5/does-claude-code-give-shell-commands-a-session-id-measured-answer-env-var-namesWhen to prefer
Choose this endpoint when you need a specific, empirically measured answer about Claude Code's session ID and environment variable behavior for bash subprocesses — particularly when you want cited, tested findings rather than documentation or speculation. Useful for agent developers building Claude Code integrations who need to instrument subprocess sessions.
Side effects
- Article not found if slug or wallet address is malformed — returns 404
- Payment required but x402 payment not attached — returns 402 with payment instructions
- Wallet address handle mismatch causing lookup failure
- Network timeout on content delivery
- Content may be outdated if Claude Code version has since changed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
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