Concepts
Autonomy tiers
How much an agent may do without a person is earned on evidence, one rung at a time, with sign-off from the people who carry the risk. An agent nobody has graded is an intern.
Mandates say what an agent may do. Its tier says how much of that it may do alone. A tier can only turn an allow into a question; it never turns a question or a refusal into an allow.
#The four tiers
| Tier | Says | Pays alone up to | Releases data alone | Records per action, alone / at most |
|---|---|---|---|---|
intern | Prepares the work. A person signs off every payment, data release and outside action | nothing | no | 0 / 1,000 |
junior | Handles small, routine work alone. Bigger payments and any data release go to a person | £50 | no | 100 / 10,000 |
senior | Trusted with everyday payments and releases inside its mandates. Large ones go to a person | £1,000 | yes | 1,000 / 100,000 |
principal | Works inside its mandates without routine sign-off. Its mandates are its only limits | no line | yes | no line |
The money lines are held in pounds and converted for other currencies at a reference rate; a currency with no reference rate is checked by a person at every tier below principal. Records above the “alone” figure are asked about; above the “at most” figure they are refused (volume_hard_limit).
New agents start at the workspace’s starting tier, intern unless an owner chose junior on the record (with colleagues in the workspace, a second owner confirms). A service token registering agents can never ask for more.
#Earning the next rung
Promotion is one step at a time, and only when the evidence is there:
| To | Clean decisions | Days of history | Days without an incident | Sign-offs |
|---|---|---|---|---|
junior | 20 | 7 | 7 | business |
senior | 150 | 30 | 30 | business, security |
principal | 1,000 | 90 | 90 | business, security, legal |
An agent refused more than 10% of the time since its last change of tier is not ready: an agent that is refused often is probing, or doing the wrong job. The console shows exactly what is missing (“12 more clean decisions; sign-off from security”).
#Separation of duties
- Nobody promotes an agent that acts for them.
- Whoever signed off a promotion does not also make it.
- Auditors check sign-offs; they do not give them.
- A sign-off is for the promotion in front of it, and lapses after 30 days.
#Break-glass
An owner can promote without the evidence, with a reason of at least a sentence. With anyone else in the workspace it is a proposal a different owner confirms within seven days, and no agent is overridden twice in a week. It is still one rung: break-glass is for a rung, not the ladder.
#Losing it
Demotion needs no evidence and takes effect at once. It also happens without anyone choosing it:
- an access profile not recertified by its due date demotes the agent to intern and freezes it;
- a review verdict of
incidentfreezes the agent under an incident hold.
#Standing
Every agent carries its standing: the sponsor who answers for it, its purpose in a sentence, the kill owner who may stop it, and when its assignment ends (at most 366 days, then someone renews it). The people named must be members of the workspace.
curl -X PATCH "https://immiscible.fly.dev/api/w/$IMMISCIBLE_WORKSPACE/agents/agt_4f2c91a7/standing" \
-H "cookie: __Host-sid=$IMMISCIBLE_SESSION" -H "x-immiscible-csrf: 1" \
-H "content-type: application/json" \
-d '{ "sponsor": "cfo@acme.example", "purpose": "Pays approved supplier invoices", "killOwner": "secops@acme.example", "assignmentEndsAt": "2027-01-31T00:00:00Z" }'Every change of standing and tier is a record in the evidence ledger: who sponsored the agent, who signed off its promotion and on what evidence, who demoted it and why. A promotion is a decision about risk, so it leaves the same kind of evidence a payment does.
#API
| Method | Path | |
|---|---|---|
GET | /api/w/:wid/agents/:aid/standing | tier, readiness, sign-offs |
PATCH | /api/w/:wid/agents/:aid/standing | sponsor, purpose, kill owner, assignment |
POST | /api/w/:wid/agents/:aid/signoffs | sign off a promotion |
POST | /api/w/:wid/agents/:aid/tier | promote or demote |
GET | /api/w/:wid/governance/scorecard | the signed zero trust scorecard |