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.
npx skills add Snowflake-Labs/cocoplus --skill meter-historygit clone --depth 1 https://github.com/Snowflake-Labs/cocoplusWrote 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.
[](https://agentmods.dev/skills/snowflake-labs/cocoplus/meter-history)<a href="https://agentmods.dev/skills/snowflake-labs/cocoplus/meter-history"><img src="https://agentmods.dev/badge/skills/snowflake-labs/cocoplus/meter-history/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/snowflake-labs/cocoplus/meter-history"><img src="https://agentmods.dev/badge/skills/snowflake-labs/cocoplus/meter-history.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00034 | $0.00452 |
| Opus 5 | $0.00017 | $0.00226 |
| Sonnet 5 | $0.00007 | $0.00090 |
| Haiku 4.5 | $0.00003 | $0.00045 |
Grade A, and why
meter-history 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 8d 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.
What it actually says
Your objective is to display historical CocoMeter data.
Before proceeding, verify that .cocoplus/ exists.
If not: output "CocoPlus not initialized in this directory. Run $pod init to begin." Then stop.
Parse argument: $meter history [n] — n defaults to 10.
Read .cocoplus/meter/history.jsonl. If it does not exist or is empty:
Output: "No meter history yet. CocoMeter records history when sessions end. Ensure CocoMeter is enabled ($meter on) and complete a session."
Then stop.
Read the last N JSON objects from history.jsonl (one per line).
Output:
# CocoMeter — Session History
Showing last [N] sessions:
| Session | Started | Duration | Tools Called | SQL Statements | Writes |
|---------|---------|----------|-------------|----------------|--------|
[one row per session]
## Totals (last [N] sessions)
Total tools called: [sum]
Total SQL statements: [sum]
Total writes: [sum]
Estimated total tokens: [sum]
Anti-Rationalization
| Shortcut / Temptation | Why It Fails |
|---|---|
| Read all lines from history.jsonl regardless of N argument | Large projects accumulate hundreds of sessions; always respect the N limit to avoid excessive output |
| Show history when history.jsonl is empty without a clear explanation | A blank output looks like a bug; always explain that no sessions have been recorded yet and how to start |
Exit Criteria
- A session history table with columns Session, Started, Duration, Tools Called, SQL Statements, Writes is output
- At most N sessions are shown (N from argument, default 10)
- Totals row showing sums across all displayed sessions is shown at the bottom
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.
- 8d ago First seen · 54 lines · 34 tokens per session scan A fd3d6c70ba12
meter-history is a skill published in the GitHub repository Snowflake-Labs/cocoplus (720 stars, last pushed 9d ago), licensed MIT. It adds 34 tokens to every session and 452 once invoked, about $0.0002 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 2026-09-03.
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