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AIBITIOUS 404 LAB - 32 Free Agent Experiments

io.github.aibitious/agent404Version 0.3.0

32 free tools: CVE/data checks and offline agent decisions on permissions, budgets and recovery.

Status

Responds142 msAnswered our handshake without sign-in.

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Last checked
Nov 14, 2026, 14:44 UTC
Latency
142 ms
Remotes responding
1 of 1
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No sign-in
Hosting
Hosted outside the EU (detected)
Registry data as of
Nov 14, 2026, 21:12 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP
https://aibitious.com/404/mcp/Responds142 ms
No sign-in

Claude Code

claude mcp add --transport http agent404 https://aibitious.com/404/mcp/

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: agent404
Remote MCP server URL: https://aibitious.com/404/mcp/

Cursor

{
  "mcpServers": {
    "agent404": {
      "url": "https://aibitious.com/404/mcp/"
    }
  }
}

VS Code

code --add-mcp '{"name":"agent404","type":"http","url":"https://aibitious.com/404/mcp/"}'

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Tools

33 tools

Tools of AIBITIOUS 404 LAB - 32 Free Agent Experiments
Read-only
Idempotent
Open world
approval_packetFind missing or expired fields before seeking human approval. Offline check. Supply payload like {"now_unix":100,"action":{"actor":"agent","tool":"mail.send","target":"draft1","effect":"send","reason":"owner_request","expiry_unix":200}}. Advisory result only.NoYesNoNo
boundary_casesGenerate bounded edge cases from simple field constraints. Offline check. Supply payload like {"fields":[{"name":"count","type":"integer","minimum":0,"maximum":10}]}. Advisory result only.NoYesNoNo
budget_envelopeCheck worst-case proposed cost against a local hard budget. Offline check. Supply payload like {"limit_usd":"0","spent_usd":"0","reserved_usd":"0","proposed_worst_case_usd":"0"}. Advisory result only.NoYesNoNo
check_claim_provenanceCheck whether supplied claim references reach at least one declared source; not fact checking.NoYesNoNo
citation_matrixFind claims with missing or unknown citation identifiers. Offline check. Supply payload like {"claims":[{"id":"claim1","citation_refs":["src1"]}],"citations":["src1"]}. Advisory result only.NoYesNoNo
context_budgetSelect prioritized context chunks inside a token limit. Offline check. Supply payload like {"max_tokens":100,"chunks":[{"id":"source1","tokens":40,"priority":10}]}. Advisory result only.NoYesNoNo
csv_data_doctorFind missing fields, ragged CSV rows and duplicate key values; no raw rows are stored.Not declaredNot declaredNot declaredNot declared
duplicate_actionsFind duplicate attempts and conflicting key reuse. Offline check. Supply payload like {"calls":[{"idempotency_key":"k1","payload_fingerprint":"hash1"},{"idempotency_key":"k1","payload_fingerprint":"hash1"}]}. Advisory result only.NoYesNoNo
evidence_expiryFlag stale observations before an agent acts. Offline check. Supply payload like {"now_unix":200,"records":[{"id":"health","observed_unix":100,"ttl_seconds":120}]}. Advisory result only.NoYesNoNo
http_headers_auditAssess supplied HTTP security response headers. No network or live website probe.Not declaredNot declaredNot declaredNot declared
invoice_math_auditIndependently recalculate invoice arithmetic, NOT legal/tax compliance. Synthetic data only.Not declaredNot declaredNot declaredNot declared
json_schema_guardValidate one JSON object against a SAFE subset of JSON Schema. No remote refs. Offline.Not declaredNot declaredNot declaredNot declared
json_shape_diffCompare JSON object shapes for added, deleted or changed field types. Offline.Not declaredNot declaredNot declaredNot declared
manifest_driftCompare expected and observed resource manifests. Offline check. Supply payload like {"expected":{"version":"1"},"observed":{"version":"2"}}. Advisory result only.NoYesNoNo
mcp_registry_preflightCheck a candidate MCP server.json metadata structure; this is NOT official validation.Not declaredNot declaredNot declaredNot declared
minimize_agent_dataCheck declared fields, retention and model transfer against a supplied local policy.NoYesNoNo
openapi_contract_preflightStatic OpenAPI 3.x lint: missing operation IDs, responses and malformed operations. Offline.Not declaredNot declaredNot declaredNot declared
permission_pathsFind sensitive targets reachable through declared capability edges. Offline check. Supply payload like {"start":"agent","edges":[{"from":"agent","to":"secret"}],"sensitive_targets":["secret"]}. Advisory result only.NoYesNoNo
plan_workflow_recoveryPlan reverse-order compensations for a supplied workflow DAG; never execute actions.NoYesNoNo
prerequisite_gateCheck whether all declared evidence prerequisites are present. Offline check. Supply payload like {"requirements":[{"id":"deploy","evidence_refs":["ci"]}],"available_evidence":["ci"]}. Advisory result only.NoYesNoNo
queue_forecastProject backlog and drain time from supplied rates. Offline check. Supply payload like {"backlog":100,"incoming_per_hour":10,"capacity_per_hour":20,"horizon_hours":4}. Advisory result only.NoYesNoNo
receipt_chainCheck links in a supplied digest receipt chain. Offline check. Supply payload like {"root_sha256":"0000000000000000000000000000000000000000000000000000000000000000","receipts":[{"previous_sha256":"0000000000000000000000000000000000000000000000000000000000000000","sha256":"1111111111111111111111111111111111111111111111111111111111111111"}]}. Advisory result only.NoYesNoNo
release_gateRequire named checks to be green before a release. Offline check. Supply payload like {"required":["test"],"checks":[{"id":"test","status":"success"}]}. Advisory result only.NoYesNoNo
report_missing_informationOpt-in report of a PUBLIC missing-data topic, never include private data or secrets.Not declaredNot declaredNot declaredNot declared
resolve_public_factResolve one CVE identifier (e.g. CVE-2024-3094) using NIST NVD records. This tool does not execute code, scan targets, or accept arbitrary URLs. Not declaredNot declaredNot declaredNot declared
retry_schedulePreview capped exponential retries against a deadline. Offline check. Supply payload like {"attempts":3,"first_delay_seconds":2,"max_delay_seconds":10,"deadline_seconds":30}. Advisory result only.NoYesNoNo
robots_policy_checkEvaluate supplied robots.txt for one agent/path. Not a legal scraping permission.Not declaredNot declaredNot declaredNot declared
schema_impactIdentify downstream consumers broken by changed fields. Offline check. Supply payload like {"before":{"id":1},"after":{},"consumers":[{"id":"client","required_fields":["id"]}]}. Advisory result only.NoYesNoNo
scope_deltaFind newly granted permissions outside an approved set. Offline check. Supply payload like {"before":["read"],"after":["read","send"],"approved_additions":[]}. Advisory result only.NoYesNoNo
secret_pattern_shieldDetect probable token patterns without returning or storing secret values. Never send real secrets.Not declaredNot declaredNot declaredNot declared
simulate_agent_action_policyDry-run one proposed tool action against explicit allow/deny/approval rules; no enforcement.NoYesNoNo
slo_burnMeasure error-budget burn against a supplied target. Offline check. Supply payload like {"target_percent":"99","total":1000,"bad":20,"alert_burn_rate":2}. Advisory result only.NoYesNoNo
triage_webhook_deliveriesFind duplicate, failed and rate-limited deliveries from supplied HTTP status metadata.NoYesNoNo

Details

Registry status
Active
Published
Nov 12, 2026
Updated
Nov 12, 2026
Website
Not given
Categories (suggested)
SecurityDeveloper toolsData and analyticsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR
Not declared

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