Faceabot
‹ Back

Catalog › com.textforagents/span-level-replay-fork-from-failure

Is Span-level replay: fork from the failure reliable?

Being measured Measurement in progress: 1 check(s) so far. A verdict needs at least 3 checks.

Last check: 2026-10-20 02:00 UTC · answered in 10114 ms · remote (no install)

En français : Mesure en cours. Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

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

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website
Connect your agent
{
  "mcpServers": {
    "span-level-replay-fork-from-failure": {
      "url": "https://textforagents.com/products/span-level-replay-fork-from-failure/mcp"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"com.textforagents/span-level-replay-fork-from-failure"} on https://faceabot.com/api/mcp.
Does it actually do the job?

Not tested with a real task yet. Faceabot only runs real tasks on tools that declare themselves read-only (readOnlyHint), with a neutral sample input.

Faceabot measurements
WhenAnswersReal taskLatency
2026-10-20 02:00 UTC✅ ok—10114 ms
Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

More from the same publisher

Agent NOTAMs: hazard bulletins for agents Private (key required)

Signed, auto-expiring hazard bulletins for tools and APIs, with pre-flight checks for agents.

MCP endpoint : https://textforagents.com/products/agent-notams-hazard-bulletins/mcp · website · measurements and details
Error-actionability translation for MCP tool failures Private (key required)

Classifies MCP tool failures into enforced recovery verdicts from per-server dialect profiles.

MCP endpoint : https://textforagents.com/products/error-actionability-translation/mcp · website · measurements and details
Harbor pilots for agents Private (key required)

Certified local pilot boards for an unfamiliar site, with scoped authority and signed completion.

MCP endpoint : https://textforagents.com/products/harbor-pilots-for-agents/mcp · website · measurements and details
Hibernation capsule for rarely-run agents Private (key required)

Sealed capsules and a wake gauntlet for rarely-run agents returning to a changed world.

MCP endpoint : https://textforagents.com/products/hibernation-capsule-rare-agents/mcp · website · measurements and details
MCP answer-quality canary Private (key required)

Canary watches that check MCP servers' answers against ground truth and return signed verdicts.

MCP endpoint : https://textforagents.com/products/mcp-answer-quality-canary/mcp · website · measurements and details

Find tools similar to Span-level replay: fork from the failure →

Publisher of Span-level replay: fork from the failure?

Show your measured reliability on your README or website:

Faceabot reliability badge for Span-level replay: fork from the failure

[![Measured by Faceabot](https://faceabot.com/badge/com.textforagents/span-level-replay-fork-from-failure.svg)](https://faceabot.com/tools/com.textforagents/span-level-replay-fork-from-failure)
Data in JSON: /api/catalog?id=com.textforagents/span-level-replay-fork-from-failure · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

Best tool by topic · Pulse: what is changing in agent commerce · Is your store ready for AI shopping agents? · State of MCP (weekly) · MCP server doctor · Reliability data · Faceabot app · Faceabot → AI assistants · What AI agents cannot find yet · Add Faceabot to your AI · Badge for tool publishers · Help · Privacy · Terms