session-claude
Use when delegating a task to Claude Code CLI with session persistence across turns.
What this skill does
# Claude Session
Launch nested Claude via `unset CLAUDECODE &&` prefix — required to bypass nesting guard.
Pipe prompt via stdin — avoids shell quoting issues.
## Direct (review, analysis, quick edits — no git)
First run:
```bash
unset CLAUDECODE && echo "${PROMPT}" | claude -p --output-format json --permission-mode acceptEdits
```
Following runs (`-c` continues most recent conversation in cwd):
```bash
unset CLAUDECODE && echo "${PROMPT}" | claude -p -c --output-format json --permission-mode acceptEdits
```
Resume specific session:
```bash
unset CLAUDECODE && echo "${PROMPT}" | claude -p -r ${SESSION_ID} --output-format json
```
## Worktree (implementation — sandboxed, full git)
Claude prepares worktree, then launches nested Claude:
1. `git worktree add .worktrees/${NAME} -b ${NAME} main`
2. Copy `.env*` files, run `uv sync` where needed
Build the command from base + profile settings:
```bash
cd .worktrees/${NAME} && unset CLAUDECODE && echo "${PROMPT}" | claude -p --output-format json --settings '${SETTINGS_JSON}' --permission-mode dontAsk --allowedTools "Read" "Edit" "Write" "Glob" "Grep" "Bash"
```
Resume: append `-c` (most recent in worktree dir) or `-r ${SESSION_ID}`.
### Settings profiles
**code** — git, edit, test pure functions. No network.
```json
{"sandbox":{"enabled":true,"autoAllowBashIfSandboxed":true,"allowUnsandboxedCommands":false}}
```
**test** — code + localhost servers (dev server, browser tests, playwright).
```json
{"sandbox":{"enabled":true,"autoAllowBashIfSandboxed":true,"allowUnsandboxedCommands":false,"network":{"allowLocalBinding":true}}}
```
**e2e** — test + external domains (APIs, package registries).
```json
{"sandbox":{"enabled":true,"autoAllowBashIfSandboxed":true,"allowUnsandboxedCommands":false,"network":{"allowLocalBinding":true,"allowedDomains":["github.com","*.pypi.org","*.npmjs.org"]}}}
```
Choose profile matching the task. `autoAllowBashIfSandboxed` allows ALL Bash within sandbox — no need to whitelist individual commands.
## Response parsing
`--output-format json` → single JSON: `{"type":"result","result":"...","session_id":"..."}`.
`--output-format stream-json` → JSONL events (use for progress visibility).
Parse `session_id` from response → set `${SESSION_ID}` for `-r` resume.
If error or empty output: show stderr, STOP.
Use Bash timeout >= 300000 for long-running tasks.
## Sandbox boundary
Sandbox = **git repo root**, not CWD. Writes anywhere in repo OK, outside repo blocked (kernel-enforced). Git works because `.git/worktrees/` is inside repo.
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