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heurist-finance: Skill for Claude Code

.claude/skills/bond-data/SKILL.md

bond-data is a skill for Claude Code from heurist-network/heurist-finance. It costs 98 tokens per session (1,545 once invoked), scanned C, original, MIT.

A data-collection guide for corporate bonds and related market measures. It explains where to find the bond's original terms, current prices and yields, Treasury and credit-spread data, market breadth, and limited credit-default-swap information.

In plain words
What is it for?
Use it to look up issuance terms, current bond prices and yields, Treasury comparisons, corporate spreads, market breadth, and available credit-default-swap news.
Why use it?
Bond information is split across several sources, and each source has limitations or delays. The guide reduces the risk of treating one incomplete feed as a complete picture of a company's debt market.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is heurist-network/heurist-finance's own configuration. It tells Claude Code how to work on heurist-finance itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything heurist-finance configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is p=$(uv run python scripts/hf_tool.py document "<url>" | python3 -c "import json,sys;print(json.load(sys.stdin)['full_text_path'])").

not rated 11repo 14d ago C scan 98 tokens original MIT
View source ↗ heurist-network/heurist-finance finance.heurist.ai
Reuse

Borrowing it

Nothing to install: this file belongs to heurist-network/heurist-finance. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/heurist-network/heurist-finance/main/.claude/skills/bond-data/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/heurist-network/heurist-finance

Made for: Claude Code.

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 bond-data

README.md
[![agentmods](https://agentmods.dev/badge/skills/heurist-network/heurist-finance/bond-data/github.svg)](https://agentmods.dev/skills/heurist-network/heurist-finance/bond-data)
Your own site
<a href="https://agentmods.dev/skills/heurist-network/heurist-finance/bond-data"><img src="https://agentmods.dev/badge/skills/heurist-network/heurist-finance/bond-data/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.

agentmods 80×15 button for bond-data

Your own site · 80×15
<a href="https://agentmods.dev/skills/heurist-network/heurist-finance/bond-data"><img src="https://agentmods.dev/badge/skills/heurist-network/heurist-finance/bond-data.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,545 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00098 $0.01545
Opus 5.5 $0.00039 $0.00618
Sonnet 5.5 $0.00020 $0.00309
Haiku 4.5 $0.00010 $0.00154

Measured 13d ago against content hash 45aba9867eb7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

bond-data scanned grade C with 2 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 13d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

T=$(curl -sS -u "$FINRA_CLIENT_ID:$FINRA_CLIENT_SECRET" -X POST "https://ews.fip.finra.org/fip/rest/ews/oauth2/access_token?grant_type=client_credentials" | python3 -c "import json,sys;print(json.load(sys.stdin)['access_

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sS -H "User-Agent: research [email protected]" https://data.sec.gov/submissions/CIK0001326801.json \
.claude/skills/bond-data/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bond data

There is no single bond feed. Combine the five sources below. Run from the repo root.

1. Terms at issue: SEC term sheets (primary)

The coupon, yield, spread and size at sale are in the pricing term sheet, form FWP (sometimes a 424B2 instead).

# list FWPs (10-digit zero-padded CIK; META=1326801, GOOGL=1652044, AMZN=1018724, MSFT=789019, ORCL=1341439)
curl -sS -H "User-Agent: research [email protected]" https://data.sec.gov/submissions/CIK0001326801.json \
 | python3 -c "import json,sys;d=json.load(sys.stdin)['filings']['recent'];[print(d['filingDate'][i],d['accessionNumber'][i],d['primaryDocument'][i]) for i,f in enumerate(d['form']) if f in('FWP','424B2')]"
# read one: URL = https://www.sec.gov/Archives/edgar/data/<cik>/<accession without dashes>/<primaryDocument>
p=$(uv run python scripts/hf_tool.py document "<url>" | python3 -c "import json,sys;print(json.load(sys.stdin)['full_text_path'])")
tr -s ' \n' ' ' < "$p" | grep -oE "(Trade Date|Yield to Maturity|Spread to Benchmark Treasury|Aggregate Principal Amount)[^|]{0,40}\|[^|]{0,20}\|[^|]{0,500}"

2. Price and yield now: TradingView bond scanner (FINRA TRACE, 4h delay)

Keep the rows where exchange is FINRA. Their prices are TRACE trades, delayed 4 hours (update_mode = delayed_streaming_14400). last_bar_update_time is a Unix timestamp. Other exchanges are European listings of the same bond.

curl -sS -X POST https://scanner.tradingview.com/bond/scan -H "Content-Type: application/json" -H "Origin: https://www.tradingview.com" \
 -d '{"filter":[{"left":"bond_issuer","operation":"match","right":"Oracle"},{"left":"exchange","operation":"equal","right":"FINRA"},{"left":"maturity_date","operation":"greater","right":20450101}],
      "columns":["description","isin","close","yield_to_worst","volume","last_bar_update_time"],
      "sort":{"sortBy":"maturity_date","sortOrder":"asc"},"range":[0,50]}'
  • The issuer name must match TradingView's spelling: "Meta Platforms", "Alphabet", "Amazon.com", "Microsoft", "Oracle". range pages through results 50 at a time.
  • Non-USD bonds (for example Alphabet's sterling 2126) carry no FINRA row. Use the row without FINRA and note the venue.

Read the full file on GitHub · 80 lines

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. 13d ago First seen · 80 lines · 98 tokens per session scan C 45aba9867eb7

Subscribe to this mod's changes

bond-data is a skill published in the GitHub repository heurist-network/heurist-finance (11 stars, last pushed 14d ago), licensed MIT. It adds 98 tokens to every session and 1,545 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-24.

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