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 gauss314/skills --skill bymagit clone --depth 1 https://github.com/gauss314/skillsWrote 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/gauss314/skills/byma)<a href="https://agentmods.dev/skills/gauss314/skills/byma"><img src="https://agentmods.dev/badge/skills/gauss314/skills/byma/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/gauss314/skills/byma"><img src="https://agentmods.dev/badge/skills/gauss314/skills/byma.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
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 →
- medium Tool Misuse · line 47 Tool defaults are unsafe or overly permissive (e.g. disabled TLS verification, no authentication, world-writable permissions). Unsafe defaults widen the attack surface.Fix: Override unsafe defaults with secure settings (verify=True, auth required, restrictive permissions). Review and harden all tool configurations.
- medium Tool Misuse · line 51 Tool defaults are unsafe or overly permissive (e.g. disabled TLS verification, no authentication, world-writable permissions). Unsafe defaults widen the attack surface.Fix: Override unsafe defaults with secure settings (verify=True, auth required, restrictive permissions). Review and harden all tool configurations.
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 | $0.00094 | $0.04702 |
| Opus 5 | $0.00047 | $0.02351 |
| Sonnet 5 | $0.00019 | $0.00940 |
| Haiku 4.5 | $0.00009 | $0.00470 |
Grade A, and why
byma 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 9d 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 — 389 lines — stays where its author put it; the contents beside it link to each section on GitHub.
BYMA — Bolsas y Mercados Argentinos
Skill para extraer datos de mercado de BYMA
via su API publica de market data (open.bymadata.com.ar) — sin API
key, sin autenticacion.
BYMA es la bolsa principal de Argentina (sucesora del Merval) donde se negocian:
- Acciones lideres (panel de 20 simbolos del MERVAL).
- CEDEARs (~1143 unicos x 2 settlements).
- Bonos publicos soberanos + LECAPs + BONCAPs (~104 unicos x 6 variantes).
- Obligaciones Negociables (ON) corporativas (~2117 items).
- SENEBI ON (segmento bilateral, ~3160 items).
- Cauciones (133 items, formato
DOLAR-DDMM-U-CT-USD). - Opciones (~429 items con strike, OI, vencimiento).
- Indices: S&P MERVAL (
M), BURCAP (G). - Historicos OHLCV diarios/semanales/mensuales para todos los instrumentos.
- Ficha tecnica de bonos (forma de amortizacion, intereses step-up, ISIN, ley aplicable, emisor).
⚠️ Aviso Legal
- API publica de BYMA, sin documentacion oficial. Los endpoints pueden cambiar sin aviso.
- Respetar terminos de uso de BYMA. No hacer mas de 1 req/segundo.
- Los datos son delayed (~15 min tipico de mercado argentino).
- Para uso comercial intensivo, contactar BYMA para licencias oficiales.
🔒 Nota sobre certificado SSL
BYMA presenta un certificado SSL cuya CA intermedia no esta incluida en
el bundle certifi estandar de Python. Esto causa:
SSLError: CERTIFICATE_VERIFY_FAILED
El script usa verify=False — la conexion sigue siendo TLS-encriptada
pero se omite la validacion de cadena. Es el patron estandar de las
librerias publicas de BYMA (pyhomebroker, bymadata, etc.).
Si preferis no usar verify=False, podes instalar el cert intermedio de
BYMA en tu trust store del sistema.
Scripts
| Script | Descripcion |
|---|---|
| fetch_byma.py | Script principal: todos los endpoints disponibles |
Uso rapido
# ── PANELES (POST) ────────────────────────────────────────────────────
# Panel lideres: 20 acciones MERVAL x 2 settlements (40 items)
py scripts/fetch_byma.py panel leading-equity
py scripts/fetch_byma.py panel leading-equity --t0 # solo CI (T+0)
py scripts/fetch_byma.py panel leading-equity --t1 # solo 24hs (T+1)
# Panel CEDEARs (~2000 items, lista directa)
py scripts/fetch_byma.py panel cedears
# Panel bonos publicos (1018 items, paginado a 189 por defecto)
py scripts/fetch_byma.py panel public-bonds
py scripts/fetch_byma.py panel public-bonds --all # trae los 1018 en una llamada
# Panel ON corporativas (~2117 items, lista directa)
py scripts/fetch_byma.py panel on
# Panel cauciones (~133 items)
py scripts/fetch_byma.py panel cauciones
# Panel SENEBI ON (3160 items, paginado)
py scripts/fetch_byma.py panel senebi-on
py scripts/fetch_byma.py panel senebi-on --all # trae los 3160 en una llamada
# Panel opciones (~429 items, con strike, OI, vencimiento)
py scripts/fetch_byma.py panel options
# ── HISTORICOS OHLCV (GET) ────────────────────────────────────────────
# Historico de un instrumento — formato simbolo: "TICKER 24HS"
py scripts/fetch_byma.py historico "GGAL 24HS"
py scripts/fetch_byma.py historico "ALUA 24HS"
py scripts/fetch_byma.py historico "AAPL 24HS" # CEDEAR ARS
py scripts/fetch_byma.py historico "AAPLD 24HS" # CEDEAR USD
py scripts/fetch_byma.py historico "AL30 24HS" # Bono ARS
py scripts/fetch_byma.py historico "AL30D 24HS" # Bono USD
py scripts/fetch_byma.py historico "AL30C 24HS" # Bono CCL
py scripts/fetch_byma.py historico "GD30 24HS"
py scripts/fetch_byma.py historico "TZX26 24HS" # BONCAP
py scripts/fetch_byma.py historico "TY30P 24HS" # BONCAP
# Con rango de fechas (default: ultimos 30 dias)
py scripts/fetch_byma.py historico "GGAL 24HS" --desde 2024-05-15 --hasta 2026-06-05
# Resolutions: D (diario), W (semanal), M (mensual)
py scripts/fetch_byma.py historico "GGAL 24HS" --resolution W
py scripts/fetch_byma.py historico "GGAL 24HS" --resolution M
# ── INDICES ────────────────────────────────────────────────────────────
# Historico del S&P MERVAL
py scripts/fetch_byma.py indice M
py scripts/fetch_byma.py indice M --desde 2025-01-01 --hasta 2026-06-05
# Historico del BURCAP
py scripts/fetch_byma.py indice G
# ── FICHA TECNICA DE BONOS ─────────────────────────────────────────────
# Ficha tecnica completa: forma de amortizacion, intereses, ISIN, ley, emisor
py scripts/fetch_byma.py bond-info AE38 # Bono soberano USD 2038 step-up
py scripts/fetch_byma.py bond-info AL30 # Bono soberano USD 2030 ley local
py scripts/fetch_byma.py bond-info GD30 # Bono soberano USD 2030 ley NY
py scripts/fetch_byma.py bond-info AE38C # Variante CCL (misma ficha)
py scripts/fetch_byma.py bond-info AE38D # Variante USD MEP (misma ficha)
py scripts/fetch_byma.py bond-info BPOA7 # BOPREAL Serie 1 A
py scripts/fetch_byma.py bond-info TY30P # BONCAP
py scripts/fetch_byma.py bond-info TZX26 # BONCAP CER
py scripts/fetch_byma.py bond-info S237Q # LECAP
py scripts/fetch_byma.py bond-info SBC1C # ON corporativa
# ── COMBINADO ──────────────────────────────────────────────────────────
# Snapshot de todos los paneles + MERVAL + BURCAP
py scripts/fetch_byma.py all
# ── OUTPUT ─────────────────────────────────────────────────────────────
# Guardar a archivo JSON
py scripts/fetch_byma.py panel leading-equity -o leading.json
py scripts/fetch_byma.py all -o snapshot_byma.json
# Modo silencioso (solo JSON, sin logs)
py scripts/fetch_byma.py panel cauciones -q
What ships with it
2 files 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.
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.
- 9d ago First seen · 389 lines · 94 tokens per session scan A ca29b65290bc
byma is a skill published in the GitHub repository gauss314/skills (237 stars, last pushed 2mo ago), licensed MIT. It adds 94 tokens to every session and 4,702 once invoked, about $0.0005 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.
Other skills, from other repositories
pier-cloud
This skill should be used when the user needs to consume the Pier Cloud (Lighthouse) API for cloud cost management — including JWT authentication, listing contexts, workspaces, and FinOps data views. Trigger whenever there is a need to integrate, automate, or debug calls to the Pier Cloud platform via Python, Node.js…
finance
Comprehensive Finance API integration skill for real-time and historical financial data analysis, market research, and investment decision-making. Priority use cases: stock price queries, market data analysis, company financial information, portfolio tracking, market news retrieval, stock screening, technical…
money
Revenue advisor — scans the Obsidian vault for work history and active projects, diagnoses the revenue system, and surfaces monetization opportunities the user can't see from inside their own perspective. Make sure to use this skill whenever the user says "/money", "how can I make more money", "review my revenue"…
bin-lookup-get-{bin}
Returns card metadata for the given 6–8 digit BIN prefix.
commodities-get-{commodity}
Returns the latest annual average price and up to 10 years of historical data for the requested commodity slug.
inflation-post-batch
Returns inflation data for up to 50 countries in a single request. Results are in the same order as the input. Countries with no data return found: false instead of failing the whole request. Billing: 1 credit per country (not per HTTP request).