metrics

A command that reads recorded coding-session measurements and shows recent sessions, averages, verification rates, and changes over time.

In plain words
What is it for?
Use it to review files changed, verification runs, newly recorded gotchas, captured signals, and decisions across recent sessions.
Why use it?
It makes it easier to see whether sessions are growing, whether changes are being checked, and whether recurring problems are being recorded.

Command for Claude Code

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 commands/codeverbojan/claude-code-kickstart/metrics
Clone the repo
git clone --depth 1 https://github.com/codeverbojan/claude-code-kickstart

Made for: Claude Code.

Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 421 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00016 $0.00421
Opus 5 $0.00008 $0.00211
Sonnet 5 $0.00003 $0.00084
Haiku 4.5 $0.00002 $0.00042

Measured 2d ago against content hash 46d88ffee946, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

metrics scanned grade A with 0 findings 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 2d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/metrics.md · 50 lines

What it actually says

Session Metrics

Read .claude/metrics.jsonl and show trends.

1. Read Data

Read .claude/metrics.jsonl. Each line is a JSON object with:

  • date, files_touched, verification_runs, gotchas_added, signals_captured, decisions_logged

If the file doesn't exist or is empty, report "No metrics yet. Run /wrap-up to start tracking session stats."

2. Show Summary

Display a table of the last 10 sessions:

Date        Files  Verified  Gotchas  Signals  Decisions
2026-04-01    5       3         1        2         1
2026-04-02    8       4         0        0         2
...

If fewer than 5 sessions, show the table but skip trend analysis. Instead say: "Not enough data for trends yet (N sessions). Need at least 5."

With 5+ sessions, calculate and display:

  • Average files per session (are sessions getting bigger or smaller?)
  • Verification ratio (verification_runs / files_touched — are you verifying enough?)
  • Signal trend (are signals decreasing over time? = fewer mistakes)
  • Gotcha growth (total gotchas accumulated — the system's learned knowledge)

4. Insights

Based on the data, provide 1-2 actionable insights:

  • If signals are increasing: "Mistake rate is rising. Consider running /retrospective."
  • If verification ratio is low: "You're editing more than verifying. Run tests more often."
  • If signals are decreasing: "Fewer mistakes over time — the gotchas are working."
  • If no signals in last 5 sessions: "Clean streak — no mistakes detected in 5 sessions."

$ARGUMENTS

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. 2d ago First seen · 50 lines · 16 tokens per session scan A 46d88ffee946

Subscribe to this mod's changes

metrics is a command published in the GitHub repository codeverbojan/claude-code-kickstart (2 stars, last pushed 4mo ago), licensed MIT. It adds 16 tokens to every session and 421 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.