A secret enters a Claude Code run, a data boundary replaces it with a safe reference, and a propagation receipt verifies every downstream surface

Claude Code redacted the secret after it had already spread

Redacting Claude Code’s final answer does not remove a secret from tool logs, traces, caches, and review packets. Track sensitive data through the whole run with a propagation receipt.

August 28, 2026 · 5 min · 971 words · Thomas De Vos
Read Claude Code redacted the secret after it had already spread
A Claude Code run completes while a cleanup gate revokes a temporary cloud role, token, and MCP session before handoff

Claude Code finished. Its temporary cloud access did not

A completed Claude Code run can leave cloud roles, tokens, and MCP sessions behind. Require a cleanup receipt that proves temporary authority has gone.

August 27, 2026 · 5 min · 980 words · Thomas De Vos
Read Claude Code finished. Its temporary cloud access did not
An AI agent proposal passing through schema, operation, target, policy, dry-run, and approval checks before a receiving system may execute it

Treat AI agent output as untrusted input at every handoff

An approved AI agent can still produce a dangerous command, query, or tool argument. Validate generated output at the receiving boundary before another system acts on it.

July 28, 2026 · 7 min · 1292 words · Thomas De Vos
Read Treat AI agent output as untrusted input at every handoff
An AI agent model fallback stopped at a security gate that checks provider, region, data, retention, tools, and policy before routing the request

Your agent's fallback model needs its own security decision

A model fallback can move prompts, retrieved data, and tool authority across a new provider or region. Treat each switch as a fresh policy decision, not a harmless retry.

July 27, 2026 · 6 min · 1248 words · Thomas De Vos
Read Your agent's fallback model needs its own security decision
An AI agent memory record passing through provenance, scope, expiry, review, and deletion checks before reuse

AI agent memory needs provenance and an expiry date

Persistent memory can make an AI agent faster, but stale facts, copied instructions, and missing ownership can quietly steer later runs. Store provenance, scope, review dates, and deletion rules with every memory.

July 24, 2026 · 7 min · 1422 words · Thomas De Vos
Read AI agent memory needs provenance and an expiry date
An AI agent evaluation that checks the request, identity, tool path, data boundary, side effects, evidence, and final answer

Test the tool path before you trust the agent's answer

An AI agent can return the right answer after using the wrong identity, reading the wrong data, or calling a tool it never needed. Production evals should inspect the path as well as the result.

July 23, 2026 · 7 min · 1327 words · Thomas De Vos
Read Test the tool path before you trust the agent's answer
A Claude Code run replay record connecting the task contract, agent actions, decision points, evidence packet, human review, and incident replay

A diff cannot replay a Claude Code run

A Claude Code diff shows the final change, but it leaves out the starting state, failed commands, MCP results, skipped tests, and plan changes. Capture a compact replay record before the run disappears.

July 22, 2026 · 6 min · 1272 words · Thomas De Vos
Read A diff cannot replay a Claude Code run
A production control loop for Claude Code with task contract, stop conditions, bounded run, evidence packet, and human review

Claude Code stop conditions are agent security controls

A production Claude Code run should know when to stop. Stop conditions turn unclear scope, wider tool access, weak rollback, and missing evidence into human review moments before an agent crosses a security boundary.

July 21, 2026 · 7 min · 1347 words · Thomas De Vos
Read Claude Code stop conditions are agent security controls
A four step control loop for normal agent grants, exception asks, human gates, and receipts

Give agent exceptions a budget before they become policy

Claude Code and enterprise AI agents sometimes need more access than the normal task contract allows. Treat that extra authority as an exception budget, with a reason, owner, expiry, evidence, and revocation path.

July 20, 2026 · 6 min · 1135 words · Thomas De Vos
Read Give agent exceptions a budget before they become policy
A Claude Code agent run leaving receipts for changed files, tests run, logs captured, risk notes, and undo path

Claude Code needs permission receipts, not blanket trust

Claude Code permissions matter before the run, but teams also need permission receipts after the run: what the agent used, what was blocked, what still needs approval, and how to undo it.

July 19, 2026 · 5 min · 1010 words · Thomas De Vos
Read Claude Code needs permission receipts, not blanket trust