Break Trace

anthropics/financial-services-pluginsOfficial

Once gl-recon has flagged a reconciliation break, this skill walks the audit trail on both sides to figure out what actually happened. It pulls the GL journal entry through the internal-gl MCP, grabs the matching subledger transaction, then diffs the attributes: posting dates, FX rates, account mappings, sign conventions. It writes a single sentence root cause like "GL posted on settle date while subledger posted on trade date" and assigns an owner and action. The skill diagnoses only, it doesn't post corrections. Useful when you need to turn a bucket of unexplained breaks into a list of specific things someone can actually fix or monitor.

skills.sh installs: 189
GitHub stars: 29.5K
last updated: Jun 3, 2026

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Install

$ npx -y skills add anthropics/financial-services-plugins --skill break-trace --agent claude-code

Installs into .claude/skills of the current project.

Files

Root-cause a break

Given a single break row (key, GL values, subledger values, bucket, likely cause), trace it to source and produce a root-cause statement.

Trace path

Pull the GL side — via the internal-gl MCP, fetch the journal entry or posting that produced this GL line: entry id, posting date, source system, batch id, preparer.
Pull the subledger side — via the subledger MCP, fetch the matching transaction: trade id, trade/settle dates, counterparty, source feed, FX rate used.
Diff the attributes — line up posting date, FX rate/date, account mapping, quantity sign, amount sign. The differing attribute is usually the cause.