Accepted · MIT · 31 tests · 6,415 assertions
Retrieval Context Provenance Auditor
Payload-free provenance for every retrieval an agent uses, so a bad decision can be traced back to its sources.
Press room · facts, sources, downloads
SHPBL press kit
SHPBL gives coding agents executable software capability plus the governed evidence to use it honestly. Six SHPBL-built agent-security tools are accepted and listed on Tenable’s CyberAgents Exchange.
6
Accepted Exchange listings
#5
Exchange Most Prolific
4th
GitHub contributor graph
MIT
Public tool licences
The news in one paragraph
Governed evidence for agent actions
The accepted series addresses retrieval provenance, tamper-evident action records, cross-agent delegation, behavioural drift, synthetic canary evidence, and proof-gated defense evolution. Each is an independently usable, zero-runtime-dependency MCP server with public tests and an MIT-licensed implementation. SHPBL composed the inventions from its own governed capability library and CMPSBL, then published clean-room implementations from written specifications.
Accepted · contributed tier
Six accepted listings
Accepted means the listing was merged into Tenable’s contributed tier. It does not mean Tenable certified, approved, or endorsed SHPBL or the software.
Accepted · MIT · 60 tests · 158 assertions
Agent Action Evidence Ledger
An append-only, hash-linked evidence ledger for agent actions, verifiable from the exported file alone.
Accepted · MIT · 71 tests · 127 assertions
Cross-Agent Handoff Attestor
Signed delegation between agents where scope can only narrow and a handoff can only be used once.
Accepted · MIT · 28 tests · 118 assertions
Agent Behaviour Drift Sentinel
Detects when an agent's behaviour quietly changes against a signed baseline of normal.
Accepted · MIT · 25 tests · 72 assertions
Canary Evidence Chain
Synthetic-only canary markers plus a payload-free evidence chain proving where they reappeared.
Accepted · MIT · 34 tests
Counterfactual Immune Forge
Proof-gated defense evolution: a fix is promoted only against the same sealed attack that beat it.
Independently checkable standing
Tenable standings
Exchange · listings contributed
#5 Most Prolific
Kenneth E. Sweet Jr. appears at #5 with six accepted listings on the Exchange’s Most Prolific leaderboard.
Verify on Tenable ↗GitHub · repository commits
4th · 6 commits
The same account is fourth on the public contributor graph for tenable/cyberagents-exchange.
Copy-ready
Boilerplate
About SHPBL
SHPBL is governed software-capability infrastructure for coding agents. It audits a repository as it exists, identifies reusable capability, constrains work through explicit authority and evidence gates, and preserves approved results for later runs. The agent remains the engineer; SHPBL supplies executable capability, provenance, licensing, verification, and retention discipline.
Founder · 55 words
Kenneth E. Sweet Jr. is the founder and sole developer of SHPBL. His work focuses on governed software reuse, evidence-preserving agent workflows, deterministic runtime claims, and software that can be inherited. He has six accepted listings on Tenable’s CyberAgents Exchange and publishes the underlying repositories, tests, specifications, provenance records, and negative findings for inspection.
Approved media
Media assets
SHPBL crystal mark
Square brand mark · PNG · 512 × 512
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SHPBL social card
Landscape brand card · PNG · 1200 × 630
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Kenneth E. Sweet Jr.
Founder portrait · JPEG
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SHPBL product artwork
Agent shipping plate · JPEG
Download original ↓Interviews, verification, technical questions
Contact the founder directly
For interviews, source verification, product demonstrations, or higher-resolution assets, email dev@KESJr.com.