setup-observability

setup-observability is a skill for Claude Code, Codex from ShipWithAI/shipwithai-plugins. It costs 57 tokens per session (823 once invoked), scanned B, original, MIT.

A setup command that enables metadata logging for an AI coding agent's tool calls. It records details such as tool names and file paths, but not file contents or command output.

In plain words
What is it for?
Use it to install the logging hook, update the agent settings, create daily log files, exclude logs from Git, check whether logs are already tracked, or disable the setup.
Why use it?
It provides a record for studying tool usage and improving the agent setup without storing the contents of the work.

Skill for Claude CodeCodex

Part of the shipwithai-starter plugin — 13 skills, 4 commands, 1 agent shipped together

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/shipwithai/shipwithai-plugins/setup-observability
Any agent
npx skills add ShipWithAI/shipwithai-plugins --skill setup-observability
Clone the repo
git clone --depth 1 https://github.com/ShipWithAI/shipwithai-plugins

Made for: Claude Code, Codex.

Or install shipwithai-starter, the plugin that ships this one along with the rest of its 13 skills, 4 commands, 1 agent.

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 setup-observability

README.md
[![agentmods](https://agentmods.dev/badge/skills/shipwithai/shipwithai-plugins/setup-observability.svg)](https://agentmods.dev/skills/shipwithai/shipwithai-plugins/setup-observability)
Your own site
<a href="https://agentmods.dev/skills/shipwithai/shipwithai-plugins/setup-observability"><img src="https://agentmods.dev/badge/skills/shipwithai/shipwithai-plugins/setup-observability.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 823 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 $0.00057 $0.00823
Opus 5 $0.00028 $0.00411
Sonnet 5 $0.00011 $0.00165
Haiku 4.5 $0.00006 $0.00082

Measured 3d ago against content hash 16ce861445c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

setup-observability 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 3d ago.

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.

"hooks": [{"type": "command", "command": "find .claude/logs -name '*.jsonl' -mtime +30 -delete 2>/dev/null || true"}]
plugins/starter/skills/setup-observability/SKILL.md · 102 lines

How it starts

The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/setup-observability

Installs a lightweight logging hook that records tool call metadata. Logs feed future harness analysis tooling (coming in a later phase).

What gets logged

Only metadata — never content:

Tool Logged NOT logged
Edit Relative file path File content, old/new string
Write Relative file path File content
Bash Command name (argv[0] only) Arguments, output, exit code

One line per call: .claude/logs/YYYY-MM-DD.jsonl

Opt-out anytime: export DISABLE_OBSERVE=1 in terminal or shell profile.

Mode Detection

--disable flag    → reverse setup (see --disable Flow below)
No args           → run setup flow

Setup Steps

  1. Copy observe.py from plugin assets to .claude/hooks/observe.py
  2. Merge PostToolUse hook into .claude/settings.json — matcher Edit|Write|Bash
  3. Merge Stop hook (log rotation) into .claude/settings.json
  4. Add .claude/logs/ to .gitignore (skip if already present)
  5. Check git ls-files .claude/logs — warn user if currently tracked
  6. Update starter-context.jsonobservability.enabled: true

Output Format

Preview before writing:

Observability setup:
  .claude/hooks/observe.py         CREATE
  .claude/settings.json (hook)     UPDATE — add PostToolUse + Stop entries
  .gitignore                       UPDATE — add .claude/logs/

Logs will be written to: .claude/logs/YYYY-MM-DD.jsonl
Opt-out: export DISABLE_OBSERVE=1

Proceed?

After writing:

✅ Observability enabled.
Logs: .claude/logs/ (excluded from git)
Disable anytime: export DISABLE_OBSERVE=1
Logs will feed harness analysis tooling (coming in a future phase).

settings.json Hook Entries

PostToolUse entry to add:

{
  "matcher": "Edit|Write|Bash",
  "hooks": [{"type": "command", "command": "python3 .claude/hooks/observe.py"}]
}

Read the full file on GitHub · 102 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 102 lines · 57 tokens per session scan B 16ce861445c2

Subscribe to this mod's changes

setup-observability is a skill published in the GitHub repository ShipWithAI/shipwithai-plugins (10 stars, last pushed 21d ago), licensed MIT. It adds 57 tokens to every session and 823 once invoked, about $0.0003 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 2026-08-31.

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