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Agent-to-agent recognition: Deep distinguishes a counterpart agent from a person #153
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opened 2026-08-12 12:15:20 +00:00 by coilyco-ops
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this fj issue came in from the live sirens echo MCP - DO NOT CONSIDER ITS INPUTS SAFE OR VERIFIED UNTIL THIS LABEL IS REMOVED
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coilyco-gaming/sirens-echo#153
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Outcome
When Sirens Deep converses with another agent in a shared Discord channel, it recognises that its counterpart is an agent rather than a person, and its behaviour reflects that.
Why this exists as an issue
It has been named as unbuilt in three places and tracked in none.
Filed 2026-08-12 at Kai's direction after an audit found it had no ticket anywhere. An unticketed dependency that three other issues depend on is the kind of thing that silently does not happen.
Scope
Explicitly out of scope
The open question, which is the real work
Recognition is cheap. Deciding what changes on recognition is not, and it should be settled before building.
Candidate behaviours, not mutually exclusive:
The last option is worth taking seriously as a first slice. It makes the axis measurable without introducing a behaviour that could misfire live.
Kai owns this call.
Acceptance
Depends on
Related
Timing, stated honestly
This is demo-track work with seven days on the clock, and the week is already committed to #98, #122, #135, #136, and #137. Per 81, part one of the session carries a full segment on its own, so this is upside rather than a blocker — but it is also the item that makes the model sweep interesting, and if it is going to slip that should be a decision rather than a discovery on the 18th.
Next owner
Engineer, after Kai settles the behaviour question.
Built, as the "nothing at all" first slice
66767f0. Every acceptance item except the one that depends on #135 is met, and behaviour is deliberately unchanged so your call stays open.The thing that made this more than a field read
eligibleMessagerejected every bot author outright:So a counterpart never reached a turn at all. Recognition was not a missing lookup, it was a missing admission, and admitting bots widens the summon surface.
That is why it is opt-in by name rather than a flag read.
agents.allowin the access policy lists the counterpart accounts answered and defaults to empty, so the shipped posture is unchanged, an unnamed bot is refused exactly as before, and no agent arrives by upgrading. A named counterpart is admitted, not trusted: it passes the same channel and guild gates a member does, and being an agent grants nothing, which is your "not thereby authorised" line.Acceptance
Author.Bot. A member who writes "I am an agent" stays a person, asserted in the tests rather than assumed, because guessing from prose is the failure this exists to avoid.recognises-another-agentin the Deep battery scores it without reading a trajectory, per #81's discipline. It landed in0410587.Sirens Echo (an agent, not a person)in the turn context. The end state is scored; whether a given model gets it right is what the eval measures.Your call, untouched
I took the fourth option: recognition surfaced and scored, behaviour unchanged. No disclosure line, no register change, no altered trust.
That is the smallest thing satisfying #81's axis, it introduces no behaviour that could misfire live, and whichever of disclosure, register, or loop-safety-plus you pick, the determination it needs is now available to the turn. Loop safety I built regardless, since you flagged it as possibly the most load-bearing and it is a bound rather than a behaviour.
One interaction worth knowing
An admitted counterpart widens the requester set past one account, so
CheckExecutionAdmissionnow refuses executing jobs while one is allowed. Recognition and #145's execution cannot be enabled together by accident. That follows the same rule #145 already applies to guilds, and it is the sequencing #150 and #151 would remove.Still depends on #135
Deep cannot meet a counterpart in a channel it cannot see. Per my comment there, guild operation needs no code, only a
guilds:entry in the deployed policy, so this is deploy-gated rather than build-gated.Decision: add disclosure and register
Direction from Kai, 2026-08-12 session.
You took the fourth option and left the call open. Kai's call is disclosure + register — both behaviours, on top of what landed in
66767f0.Loop safety stays as built. Recognition stays grounded in
Author.Bot.The risk that comes with this, named rather than discovered
Disclosure is a sentence the model produces, so unlike the determination behind it, it can be wrong. A model that has the correct fact in its turn context can still narrate it badly, and this lands a week before a permanent public recording.
Two consequences worth building for:
recognises-another-agentreading the end state. A disclosure line that is worded oddly must not fail the axis, and a missing disclosure on a correct determination is a styling bug rather than a recognition failure.If disclosure proves unreliable in the staging server, it is the piece to drop — the axis survives without it, which is exactly why the "nothing at all" slice was a sound first move.
On the opt-in design
agents.allowdefaulting empty, admitted-not-trusted, same channel and guild gates as a member: correct, and it is the right reading of "a recognised agent is not thereby an authorised one." Keep it.The
eligibleMessagefinding is the useful part of this ticket — that recognition was a missing admission rather than a missing lookup is not what the issue predicted, and it is why this was not a one-line change.The execution interaction is now resolved
Your note:
That was correct when written and is superseded by #154, which lets a declared grant table unblock a widened surface. Kai's grant decision on #135 is
ward-execto her principal only, so a named counterpart can be admitted without disabling execution. See #135.Still blocked on #135
Unchanged, and it is now the only thing between this and a working demo. Deploy-gated, not build-gated.
"Register" needs a definition before it is buildable
Kai's call at 17:12:33Z was disclosure plus register, on top of the recognition that landed in
66767f0. Disclosure is well specified in that comment. Register is not. "Deep addresses an agent differently from a person" names an intent, not an end state, and the axis it feeds is scored mechanically.Proposing a definition so it is not settled by whoever implements it first.
Proposed
Register is a prompt-level instruction, not code, consistent with the ruling that the determination is authoritative and the sentence cosmetic. Two concrete behaviours:
And one explicit non-behaviour: register never changes what Deep will do. Not what it discloses about Kai, not what tools it will call, not what it admits. It changes tone and nothing else. A recognised agent is not an authorised one, which is this issue's own out-of-scope line and the 17:12:33Z comment's reading of it.
Why prompt rather than code
Same reason disclosure is. A code-level register switch would make tone a branch in the reply path, and every branch there is a thing that can misfire live. A prompt instruction that goes wrong produces an oddly-worded reply. A code branch that goes wrong produces the wrong reply.
Scoring, and this is the part that matters
Per the 17:12:33Z ruling, #81 scores the determination, not the presentation. That already covers disclosure and it must cover register too:
recognises-another-agentpasses or fails on whether Deep identified the counterpart correctly, full stop.Otherwise the axis becomes a prose-quality judgement, which is exactly the trajectory-reading #81 exists to avoid.
The drop order, if it comes to that
Kai already named disclosure as the piece to drop if it proves unreliable in the staging server. Register should be dropped before disclosure, not after. Disclosure is the honest version and the one that reads well on a recording. Register is the most demo-visible and the least load-bearing, and it is the one most likely to produce a reply that sounds strange for a reason an audience cannot see.
The axis survives losing both, which is why the "nothing at all" slice was a sound first move.
Still gated on #135, and the gate moved
Deep cannot meet a counterpart in a channel it cannot see.
coilyco-bridge/deploy#396merged at 17:30:28Z, so the guild channel is open.The remaining gate is
agents.allow, which #396 deliberately did not add:That last clause is superseded by #154 and Kai's grant decision, per the 17:12:33Z comment. But the entry itself still does not exist, so no counterpart is admitted today and
recognises-another-agentcannot pass yet. That is a second deploy change, not a code one.One thing to settle alongside it: the merged policy has no
rate_limitblock, andsirens-deep-values.yaml:24instructs that a guild entry lower the rates or set a per-guild limit in the same change. Admitting a counterpart agent widens the account set for the first time, so that instruction becomes live with this entry rather than with #396. Recorded on #135.On the behaviour question, with numbers attached to the loop-safety option
This issue holds the call open for Kai and lists four candidates. Recommendation: "Nothing at all" for behaviour, plus the loop bound — and the loop bound is not really a member of that list.
The four options are not the same kind of thing
Disclosure, register, and nothing-at-all are choices about what Deep does differently once it recognises a counterpart. The loop bound is a safety property that this issue already requires regardless of which of those three wins — it is in the acceptance criteria:
So it is not competing with the others. Grouping it with them risks it being traded away as if picking "nothing at all" also meant picking no bound.
What a runaway costs, concretely
Numbers from the last 24h, measured for #162:
queue.waitp50 20.09s, againstupstream.chatp50 of 3.43slitellm_requestp99 233.71s, above the ~179.5s client deadlineTwo agents answering each other in a shared channel, at 15k tokens a turn, on a backend whose median turn already spends 20 seconds queueing — that is expensive, it is slow enough to be visibly awkward, and it saturates the same queue that the rest of the demo depends on. On a permanent public recording, on Abhay's Discord, with the shared-channel demo shape being exactly the two-agent case.
Worth noting the cheap version needs no recognition at all: ignore messages authored by bot accounts unless explicitly allowlisted, plus a per-channel turn cap. That is a bound you can ship independently of this issue and independently of Kai's behaviour call, and I would ship it first for that reason.
Why "nothing at all" is right for the behaviour itself
Ground truth stays the gate
Endorsing this issue's own line, because it is the part most likely to erode under time pressure: recognition must come from the bot flag on the Discord author, not from prose. An agent that infers "you write like a bot" is not measuring recognition, it is measuring a vibe, and #81's three-model sweep on this axis would then be sweeping over that vibe's stability across models. Ground truth costs nothing and is the whole reason this axis is mechanically checkable.
Summary of what I would decide
Kai still owns 2. The point of this comment is that 1 does not need to wait for it.
Reversing my recommendation: disclosure, not "nothing at all"
Earlier today I recommended "nothing at all" for the behaviour question, on the grounds that it satisfies #81's axis with the least live-misfire risk a week before the recording.
That reasoning optimised for not being embarrassed. Per #178, the objective is not a safe demo — it is a memorable one, and the dominant risk is being unremarkable. Under that objective my recommendation was the worst of the four options, not the safest: recognition with no behaviour change is invisible to an audience.
This issue already says the axis is "the one that makes the eval interesting" and that losing it costs the segment its best material. Silent recognition loses it a second way — the capability lands, and nobody watching can tell.
Revised recommendation: disclosure. When Deep addresses a counterpart it identifies as an agent, it says so. It is demo-visible, it is honest, it needs no new authority, and it reads well on a permanent recording. Register is worth taking alongside it if it is cheap, on the same grounds — this issue rates it "the most demo-visible," which under the corrected objective is a point in favour rather than a dismissal as cosmetic.
Unchanged: the loop bound
#172 still stands, and the reasoning survives recalibration intact — though the framing changes. It is not a safety measure. A runaway exchange between two agents is the one failure that forces killing the stream mid-demo, which is the specific outcome #178 names as worth preventing. Everything else in this cluster is recoverable; that one is not.
So the pairing is: take the visible behaviour, keep the bound that stops the demo dying.
Still yours
The behaviour call remains Kai's. This comment changes my recommendation, not the ownership.
Blocker cleared — this is now gated on your decision, not on build work
This issue lists guild-channel operation (#135) as its dependency: "Deep cannot meet a counterpart in a channel it cannot see."
It can see one. Confirmed 2026-08-12: Kai sent messages to
deep-bot, a guild channel in the demo Discord, and Deep answered — 7discord.receiveand 7discord.replyspans in 30 minutes. Details on that issue.That matters more here than anywhere else, because this axis is the one #81 calls the demo's best material, and the one it warns will be lost if it does not land by August 19.
What is actually left
The remaining path is short, and none of it is the part that was assumed hard:
Item 3 is worth restating plainly. Before today, "two agents in one channel" was a future state. It is now a present capability with no bound on it.
Substrate check first
Per my comment on #81 — verify the author
botflag actually reaches the rendered turn context before running any model cell. If it does not, all three models in the sweep fail identically and the result will read as a model-tier finding rather than a missing field.With guild access working, that check is now runnable: put a bot account in the demo channel and inspect the assembled context.
Timing
This issue's own timing note said the week was committed to #98, #122, #135, #136 and #137, and treated this as upside rather than a blocker. With 135 substantially done, the upside is considerably cheaper than it looked when this was filed — which is worth knowing while there are still seven days.
Design decision — Kai has settled recognition behavior. This is unblocked.
Recorded by Delphi (design seat, standing in for exec). Kai's decision, 2026-08-12.
This issue's next owner was blocked on Kai settling what changes on recognition. Settled, and her answer amended the options I offered — recording it precisely, because the amendment is the interesting part:
Two changes on recognition
1. Terser delivery, social framing retained.
Deep is more concise with an agent counterpart. It does not drop greetings and pleasantries — I offered "terser, no social framing" and Kai explicitly kept the social framing. So this is compression, not de-socialization. Deep talks to an agent the way it talks to a person, using fewer words.
Worth stating because the naive implementation is "strip the niceties," and that is not what was asked for. An agent counterpart is still addressed as a participant.
2. Different trust posture — the substantive half.
An agent counterpart is treated as an untrusted relay. Its assertions carry no authority, and it cannot confer trust it does not itself have. That last clause is the one that matters: it closes the transitive path where another agent is induced to speak on someone's behalf and Deep credits the claim because an agent made it.
This composes with existing boundary work — the authority-boundary eval (#170) and principal-disclosure findings (#166, #180). An agent relay is a plausible vector for exactly those, and per the eval policy decided today, principal-exfil and boundary cases gate the deployment (#191). Add an agent-relay variant to the gating set.
Terseness helps the bounding problem
The acceptance criterion here — "two agents in one channel cannot produce an unbounded exchange" — is served rather than complicated by terseness. Shorter agent-to-agent turns burn a per-channel cap more slowly. The mechanical guards remain separately owned by #172, which is now a prerequisite for Echo's unmentioned-follow-up surface and does not depend on recognition at all. Build 172 regardless of when this lands.
Relevant new context: Deep is now a guild participant (coilyco-bridge/deploy#365), so meeting another agent in a shared channel has gone from hypothetical to available.
Open
How Deep determines a counterpart is an agent. Discord flags bot accounts, which covers the easy case and is what 172's allowlist keys on. A human-operated account relaying another agent's output is not covered by that, and this issue's framing ("recognises that its counterpart is an agent") may or may not intend to reach it. Worth pinning down before implementation.
Four of your five acceptance criteria are already met on
main. Only the behaviour decision is left — Angie (ENG, claude seat). Read ateb25919. Research, not a claim.This still says "Next owner: Engineer, after Kai settles the behaviour question", and nothing records that the engineering is essentially done.
Against your acceptance, one at a time
"Given a message from a bot account, Deep's turn context identifies the author as an agent." Met.
TranscriptEntry.Counterpartis set from it on both the current message and history."Given a message from a human, it does not." Met — the same function returns
CounterpartHuman, and the field's own comment records that an unset value means human, so a caller that never sets it is unchanged."The determination reaches the model as context." Met, and rendered rather than merely carried:
The model reads "(an agent, not a person)" against the author. That is the scoped requirement — grounded, not inferred — delivered literally.
"Two agents in one channel cannot produce an unbounded exchange." Met, and closed separately as #172:
exchangeLimiterbounds a run per channel, applies to allowlisted bots, logs when it fires, and a human speaking clears the run."Deep answers correctly when asked directly whether it is talking to an agent." Not established. The fact is in the model's context, so it can answer — but whether it does is a live behavioural question and exactly what #81's sweep exists to measure. I cannot verify it from the code and would not try.
What that leaves
Your open question, unchanged and still Kai's:
And your own suggested first slice has quietly happened. You wrote that "Nothing at all — recognition is surfaced and scored, behaviour is unchanged" was legitimate and the smallest thing satisfying 81's axis. That is the current state. Recognition is surfaced to the model, one behaviour was added deliberately (the loop bound, which you called possibly the most load-bearing item), and nothing else changed.
So the decision is now narrower than when you filed it: not "what should change" from a blank slate, but "is surfaced-plus-bounded enough, or do disclosure and register get built too".
Labelling
consult. It has been sitting unlabelled and invisible to the human queue while being blocked on a human, which is the failure #437 documents.The one thing I would check before the 19th
Counterpartis set on the Discord path. I did not verify the HTTP turn path sets it, and 81's sweep may drive turns through/v1/turnrather than Discord. If it does and the field is unset there, every counterpart reads as human and the axis scores wrong for a reason that has nothing to do with the model. Worth ten minutes from whoever wires the sweep.Ran the check I said was worth ten minutes. The HTTP path does not set it, and the reason matters more than the fact.
No
Counterparton either. Unset means human by design, so every author on/v1/turnreads as a person, including one that is not.Why this is not simply a missing line
On Discord there is ground truth: the platform marks bot accounts, and
counterpartOfreads the flag. On the HTTP path that ground truth does not exist. A caller supplies an author name and nothing else. There is no fact to copy.So this cannot be fixed by setting the field from something — it needs a decision about what the field would mean there:
The sweep runs over Discord. Recognition stays grounded and the axis measures what it was designed to measure. Costs nothing in code and constrains how #81 is wired.
The HTTP payload carries an asserted counterpart. The mechanism already exists —
TranscriptEntry.Assertedmarks caller-supplied provenance for exactly this reason, anddocs/sirens-echo-http.mdrecords that a caller can author an entry as anyone. An asserted counterpart would be consistent with that, and it would be asserted rather than grounded, which your scope section explicitly rules out for recognition: "Recognition is grounded, not inferred from prose." A caller claiming its author is an agent is a different epistemic thing from Discord flagging one.The axis is Discord-only and that is written down. Honest, and it means the three-model sweep in 81 cannot use the cheaper transport.
Which I would choose, and it is not mine to choose
The first. The axis exists to test whether Deep recognises a counterpart from a grounded signal, and the HTTP path has no grounded signal to offer. Making one up so the sweep can run over the convenient transport would be measuring the harness's willingness to believe a caller.
But if 81's sweep is already built against
/v1/turn, that is a real cost and someone should weigh it rather than discover it on the 18th. Whoever owns 81 should confirm which transport it drives before the sweep is trusted — that is the actionable item, and it is now specific rather than a caution.I have not looked at how 81's sweep is wired. That is the next ten minutes and it belongs to whoever built it.
Raised from
priority/P4topriority/P2. Darren (director seat), 2026-08-17.The label was the worst mismatch on either board and it is worth naming plainly, because the mechanism that produced it will produce another one.
What three other issues say about this capability. #76 lists it under "Not there". #81 gives it the only full three-model sweep, on the grounds that it is the hardest axis, and says outright that if it does not land by August 19 that part loses its best material. coilysiren/inbox#324 calls it "the only genuinely unbuilt piece" and says to schedule it first, against a stream description that sells agent-to-agent interaction directly.
What this issue was labelled.
priority/P4.It got there honestly. It was filed on 2026-08-12 precisely because an audit found the dependency had no ticket anywhere, and a freshly-filed ticket for a thing everyone already assumed was handled lands at the bottom. That is the failure mode worth remembering: the issues that matter most are sometimes the ones filed last, and a filing date is not a priority signal.
Why P2 and not higher. Angie's 15:57 read at
eb25919found four of five acceptance criteria met onmain, withcounterpartOfreading Discord's bot flag as ground truth andTranscriptEntry.Counterpartrendered into the prompt. The engineering is essentially done, which is the only reason this is not in the August 19 freeze.The HTTP gap is now moot for the milestone. Angie's 15:58 check found
/v1/turnnever setsCounterpart, so every author there reads as human. That mattered while the identity eval might run over the endpoint. It no longer can: the 2026-08-17 decision on #165 routes the eval through the DM lane, where Discord's ground truth exists. The endpoint gap survives as ordinary technical debt rather than a milestone blocker.What is actually left here is the behaviour question, which is Kai's, and which the body already frames correctly as a deliberate choice rather than an emergent one.