Session Viewer

Session Viewer

Use when asked to view, export, inspect, or share a Codex, Claude Code, OpenClaw, or Pi session transcript in a browser.

Commands

When the session path is not known and the agent-transcript skill is available, use it first to find the likely JSONL session:

.agents/skills/agent-transcript/scripts/agent-transcript find \
  --query "$USER_GOAL_OR_TITLE $BRANCH_OR_URL" \
  --cwd "$PWD" \
  --since-days 14

Pick the highest-confidence file result, then render it with session-viewer.

From a repo that has this skill:

node skills/session-viewer/scripts/session-viewer.ts <session.jsonl> --out /tmp/session.html --open

Useful modes:

node skills/session-viewer/scripts/session-viewer.ts <session.jsonl> --out session.html
node skills/session-viewer/scripts/session-viewer.ts <session.jsonl> --raw --out session.html
node skills/session-viewer/scripts/session-viewer.ts --blank --out viewer.html --open

In a downstream repo that syncs shared skills under .agents/skills, replace skills/session-viewer with .agents/skills/session-viewer.

Defaults:

• detects codex, claude, or pi-openclaw
• embeds normalized session data into one HTML file
• keeps tool input/output text in the DOM so browser search can find it
• reads the complete session file, preserving full history in both export modes
• --raw embeds the original JSONL and lets the browser parse it
• --blank creates a reusable file-picker viewer

For an explicitly partial export, use --max-read-bytes N with a positive integer byte limit (for example, --max-read-bytes 8388608 for 8 MiB). Oversized files retain the head and tail, with a visible omission warning in the CLI and exported viewer. Truncated boundary records may be omitted; --raw embeds only the retained JSONL. Files at or below the limit remain complete. Short reads are retried; an unexpected end of file fails the export instead of reporting a complete read.

This opt-in read limit applies only to CLI file exports. The browser's file picker continues to load complete files.

Where Sessions Live

Codex:

find "${CODEX_HOME:-$HOME/.codex}/sessions" -name 'rollout-*.jsonl' -type f | sort
ls -t "${CODEX_HOME:-$HOME/.codex}"/sessions/*/*/*/rollout-*.jsonl | head

OpenClaw/Pi:

AGENT_ID="<agentId>"
SESSION_DIR="${OPENCLAW_STATE_DIR:-$HOME/.openclaw}/agents/$AGENT_ID/sessions"
ls -t "$SESSION_DIR"/*.jsonl | head
find "${OPENCLAW_STATE_DIR:-$HOME/.openclaw}/agents" -path '*/sessions/*.jsonl' -type f | sort

Use sessions.json in the same directory to map session keys to session ids.

Claude Code:

find "$HOME/.claude/projects" -name '*.jsonl' -type f | sort
ls -t "$HOME/.claude/projects"/**/*.jsonl | head

Some Claude installs also keep exported JSON/JSONL under project-specific cache folders; prefer the newest JSONL with the target repo path in its parent folder.

Development

Scripts are native Node TypeScript. Keep them erasable:

• ok: types, interfaces, unions, satisfies
• avoid: enums, namespaces, decorators, parameter properties
• no tsconfig path aliases; use relative imports

Importer ownership:

• scripts/importers/codex.ts: Codex rollout JSONL
• scripts/importers/claude.ts: Claude Code JSONL
• scripts/importers/pi-openclaw.ts: Pi/OpenClaw session JSONL

Validate:

npm ci --ignore-scripts
npm run typecheck
node --test skills/session-viewer/scripts/session-viewer.test.ts
scripts/validate-skills