session-viewer

session-viewer is a skill for Claude Code, Codex from openclaw/agent-skills. It costs 32 tokens per session (786 once invoked), scanned B, original, MIT.

A browser-based viewer that turns JSONL session transcripts from coding agents into a searchable, shareable single-file HTML page.

In plain words
What is it for?
Use it to view Codex, Claude Code, OpenClaw, or Pi transcripts in a browser, including a blank viewer or a raw transcript view.
Why use it?
It makes long agent conversations easier to inspect, export, and share without opening the original command-line session.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/openclaw/agent-skills/session-viewer
Any agent
npx skills add openclaw/agent-skills --skill session-viewer
Clone the repo
git clone --depth 1 https://github.com/openclaw/agent-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for session-viewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/openclaw/agent-skills/session-viewer.svg)](https://agentmods.dev/skills/openclaw/agent-skills/session-viewer)
Your own site
<a href="https://agentmods.dev/skills/openclaw/agent-skills/session-viewer"><img src="https://agentmods.dev/badge/skills/openclaw/agent-skills/session-viewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 786 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00032 $0.00786
Opus 5 $0.00016 $0.00393
Sonnet 5 $0.00006 $0.00157
Haiku 4.5 $0.00003 $0.00079

Measured 4d ago against content hash 89b6f03e0fe0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

session-viewer scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

The scan reads SKILL.md. This mod also ships 10 executable files (scripts/core/detect.ts, scripts/core/jsonl.ts, scripts/core/types.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

find "$HOME/.claude/projects" -name '*.jsonl' -type f | sort
skills/session-viewer/SKILL.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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
  • --raw embeds the original JSONL and lets the browser parse it
  • --blank creates a reusable file-picker viewer

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

Read the full file on GitHub · 98 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 98 lines · 32 tokens per session scan B 89b6f03e0fe0

Subscribe to this mod's changes

session-viewer is a skill published in the GitHub repository openclaw/agent-skills (1,070 stars, last pushed 4d ago), licensed MIT. It adds 32 tokens to every session and 786 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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