SHarness · the last metre · headline: our framing
SH6
Today the key arrives in the clear.
OBSERVED
Panel 3 of the comic. sgit 0.24.0, 24 October 2026.
DESIGNED, NOT BUILT
Panels 5 to 7 of the comic. A proposal, no running code.
The agentits process
The diskreadable by that process
[ vault key, redacted ]
In the clear on disk, in the process arguments, in the shell history and in the transcript. The last metre.
Our reading: an injected instruction asks the agent to print its key. Nothing stops it in this panel.
The agentasks for an operation
Key servicea KMS holds the key
[ vault key, redacted ]
designed wall
The agent asks; it never receives the key. It gets back a result sealed to a one-time key.
The transcript sees: the command, ciphertext, fingerprints, progress. Never a key.