FIELD NOTE / TIKTOK
Cancel without reading tools.
The short film, the complete written thought, and the evidence behind it.
The TikTok conversation link will follow its public release.
Cancel without reading tools.
Day 107 - 2027-01-12 PT target - TikTok
Video caption
Cancel without reading tools. MCP plane should stay identical. See which review lights up. Write the interface list. Narration uses Eric's authorized AI voice clone. #EricFieldNotes
Full written post / accessibility read
I try to cancel a running harness job using only the product job API. I should not need the MCP tool catalog. If I do, composition failed the product seam test.
I run the same job on a flag hardened container and, if budget allows, on a microVM class substrate. The MCP tool plane should stay the same. Isolation policy should change. That is the substrate seam test.
I inject a tools misconfig, then a cancel bug, then a network policy miss. Each should page a different owner. If one pager gets all three, the org chart still thinks there is one protocol.
Document the three interfaces in one page. Job API, tool plane, substrate policy. That page is the composition contract for Fleet Ops.
Narration uses Eric's authorized AI voice clone.
#EricFieldNotes
Four-beat scene transcript
1. Cancel without reading tools.
I try to cancel a running harness job using only the product job API. I should not need the MCP tool catalog. If I do, composition failed the product seam test.
Visual: If you cannot, the seams leaked.
2. Move substrate, keep tools.
I run the same job on a flag hardened container and, if budget allows, on a microVM class substrate. The MCP tool plane should stay the same. Isolation policy should change. That is the substrate seam test.
Visual: MCP plane should stay identical.
3. Break one seam on purpose.
I inject a tools misconfig, then a cancel bug, then a network policy miss. Each should page a different owner. If one pager gets all three, the org chart still thinks there is one protocol.
Visual: See which review lights up.
4. Write the interface list.
Document the three interfaces in one page. Job API, tool plane, substrate policy. That page is the composition contract for Fleet Ops.
Visual: Composition becomes operable.