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 carta/plugins --skill carta-market-benchmarksgit clone --depth 1 https://github.com/carta/pluginsWrote 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/carta/plugins/carta-market-benchmarks)<a href="https://agentmods.dev/skills/carta/plugins/carta-market-benchmarks"><img src="https://agentmods.dev/badge/skills/carta/plugins/carta-market-benchmarks.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Prompt Injection · line 23 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
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 | $0.00039 | $0.01927 |
| Opus 5 | $0.00019 | $0.00963 |
| Sonnet 5 | $0.00008 | $0.00385 |
| Haiku 4.5 | $0.00004 | $0.00193 |
Grade A, and why
carta-market-benchmarks 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 178 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Market Benchmarks
Compute portfolio-wide benchmarks from your own Carta data: option pool sizes, SAFE valuation caps, and round sizes. Useful for sanity-checking a new deal's terms against your existing portfolio.
Note: This reflects your firm's portfolio, not Carta-wide market data. Present results as "portfolio benchmarks" not "market data."
Prerequisites
No inputs required — this skill loops the full portfolio automatically.
Data Retrieval
Portfolio Enumeration
Call list_accounts. Filter to corporation_pk: accounts. Extract up to 20 numeric corporation IDs. If more than 20 companies exist, ask the user to narrow scope.
Per-Company Commands
For each company, the relevant commands are:
call_tool({"name": "cap_table__get__cap_table_by_share_class", "arguments": {"corporation_id": corporation_id}})-- option pool datacall_tool({"name": "cap_table__get__convertible_notes", "arguments": {"corporation_id": corporation_id}})-- SAFE/note terms (summary includes median/min/max price_cap, avg_discount, by_type)call_tool({"name": "cap_table__get__financing_history", "arguments": {"corporation_id": corporation_id}})-- round sizes (summary includes per-round cash_raised and latest_date)
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.
- 4d ago Changed · +1 lines 2bfff5294ba9
- 8d ago First seen · 177 lines · 39 tokens per session scan A 2d1fa773abc3
carta-market-benchmarks is a skill published in the GitHub repository carta/plugins (12 stars, last pushed 2d ago), licensed Apache-2.0. It adds 39 tokens to every session and 1,927 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 2026-08-30.
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