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Span-level replay: fork from the failure

com.textforagents/span-level-replay-fork-from-failure · v1.0.0

New (7 days)Tools changed (7 days)

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2024-11-05
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	tools
Tool definitions	2 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

Description written by the publisher, not verified

Fork-replay one recorded span from a failed agent run and get an attribution verdict.

Connect

streamable-http · https://textforagents.com/products/span-level-replay-fork-from-failure/mcp

claude mcp add --transport http span-level-replay-fork-from-failure https://textforagents.com/products/span-level-replay-fork-from-failure/mcp

{
  "mcpServers": {
    "span-level-replay-fork-from-failure": {
      "url": "https://textforagents.com/products/span-level-replay-fork-from-failure/mcp"
    }
  }
}

Tools as reported by the server

replay_span
Fork-replay ONE recorded span from a failed agent run and return an attribution verdict (determinism vs tool drift vs env drift vs world-state vs model decision), without re-running the whole run.
fork_safety_check
Examine ONE recorded span (or a run's span set) forensically — canonicalization, env binding, completeness, stub coverage — and return the fork-safety verdict (FORK-SAFE-LIVE / FORK-SAFE-STUBBED / FORK-DEGRADED / FORK-UNSAFE) WITHOUT executing the span or forking anything. $0.01 per span checked on

Tool changes

2026-10-22: replay_span, fork_safety_check
2026-10-21: replay_span

Website · JSON · Text for agents · Registry updated 2026-10-20