verify_task_history

shallow

io.applayer/tango · Verify this server

Return the full append-only transparency-log history for a task and cryptographically verify the hash chain covering it. If `intact` is false, `broken_at_seq` points to the first altered or missing row. Deletion of a task produces a `task.deleted` event with the final row's sha256 — history survives deletion.

100.0/100

1 trials · measured 2 days ago

verify_task_history scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against io.applayer/tango, measured 31 Aug 2026 under methodology v0.2.0. Every measured component scored 100.

Component breakdown

ComponentWeightValue
Reliability35%not applicable
Schema integrity25%100.0
Failure behaviour15%not applicable
Latency15%not applicable
Concurrency10%not applicable

Tool details

Transport
remote
Credential class
gated
Input schema
not declared
Output schema
not declared
Side-effect classification
unclassified

Score history

DayScoreTierMethodology
2026-08-31100.0shallowv0.2.0

Probe evidence

ProbeOutcomes
schema_integritypass: 1

Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.

Embed this score

Available for every tool, scored or not — not a verification perk. Always links back to this page.

Vouch score: verify_task_history
[![Vouch score](https://vouch.tools/api/tools/48d36f36-9ea6-44f5-8eb3-a36fefc9a3b4/badge.svg)](https://vouch.tools/tools/48d36f36-9ea6-44f5-8eb3-a36fefc9a3b4)
verify_task_history — Vouch