| name | co-sessions |
| description | Cross-session history search for claude-codex-orchestration. Before starting complex work, dispatch a general-purpose subagent to search ~/.claude/projects/ and ~/.codex/sessions/ for prior investigations of the same problem. Returns prior approaches tried, dead ends and why they failed, key decisions + rationale, related context. Avoids repeating failed paths from past sessions. Delegates to claude-codex-orchestration references/knowledge-compounding.md. |
/co-sessions — Cross-Session History Search
Full protocol: ~/.claude/skills/claude-codex-orchestration/references/knowledge-compounding.md §/co-sessions.
Quick run
CC runtime: Dispatch via built-in Agent tool (subagent_type: general-purpose, run_in_background: true):
Search prior sessions for "<specific problem — not generic topic>".
Scope: ~/.claude/projects/ (CC sessions) + ~/.codex/sessions/ (Codex sessions)
Filter: current repo path matches working directory, or branch name matches
Return: prior approaches tried, dead ends + why failed, key decisions +
rationale, related context. < 300 words. Include session date +
file path for each finding.
Codex runtime (no Agent tool): Direct shell search fallback:
grep -rl "<problem keywords>" ~/.claude/projects/ 2>/dev/null | head -20
grep -rl "<problem keywords>" ~/.codex/sessions/ 2>/dev/null | head -20
for f in $(grep -rl "<keywords>" ~/.claude/projects/ ~/.codex/sessions/ 2>/dev/null | head -5); do
echo "=== $f ===" && head -50 "$f"
done
Output: same summary format regardless of runtime. Use to avoid repeating failed approaches.
