Adds a child-exit-code guard to handleProvisional so a `ctask new`
workspace is reclaimed only when the agent was actually canceled
before real work (trust prompt rejected, Esc during startup, Ctrl+C
mid-launch — all confirmed empirically as exit code 1). A zero exit
means the user entered the agent and exited cleanly, which is a
legitimate workflow that must preserve the workspace even with an
empty manifest diff — for example when the user wants the workspace
directory established so they can populate context/ before resuming.
The exit code reaches handleProvisional via a new childExitCode
helper that unwraps *exec.ExitError from cmd.Run's return. Non-exit
errors (agent not found, OS-level failure) map to -1 so the
workspace is still cleaned up — the child never actually ran.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
When `ctask new` launched the agent or shell and the child exited without
touching any files (e.g. the user canceled at Claude Code's trust prompt),
the workspace was left behind as empty clutter. Now, if the invocation
just created the workspace and the manifest diff is empty (zero added,
modified, deleted), the workspace directory is removed and finalize is
skipped. resume/open/last are unaffected (NewlyCreated defaults to false),
and --no-launch is unaffected (session.Run is never called).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Replace box-drawing characters (U+2500) in session log with ASCII dashes.
Replace em dashes (U+2014) in CLAUDE.md template with double hyphens.
Remove em dash from comment in run.go.
Add ASCII-guard tests for session log output and seed templates.
Prevents mojibake on Windows terminals that misinterpret UTF-8 as CP1252.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Refactor new/resume/open to use session.Run() which wraps child process launch with pre/post manifest capture and append-only session logging to logs/sessions.log. Bump version to 0.2.0.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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