Slides: The State of MCP observability: Observable.tools — Alex Volkov and Benjamin Eckel, W&B and Dylibso
Source Video
The State of MCP observability: Observable.tools — Alex Volkov and Benjamin Eckel, W&B and Dylibso
Relationship To World's Fair 2026
These slides are extracted from a public AI Engineer YouTube video connected to World's Fair 2026. Speaker-matched clips are supporting context unless later confirmed as exact session recordings; official livestream recordings are day-level/event-level source material.
Related Scheduled Sessions
- No individual scheduled session mapping has been assigned yet; treat this as an event livestream deck.
Extracted Slides

OCR text:
aWws
ee)
@®Graphite W Windsurf 4 MonegobB
Mdaily £3augmentcode WorkOS

OCR text:
NT ger ; aera
eae CY a Ks eos
Y Wwe
"Y )
, ar
| Weights i a § baz
| World's Fair |

OCR text:
) Graphite > _ ra a MV Ce Celso) a asl aW
— ngoee —— _ S. — ae
ea \ See ae
wi K anion
ae PE
eee AL Aes net

OCR text:
MCPs are black boxes*
: "for observability
ry » a a Prone
es ern Doser Cas ES 000 OO

OCR text:
Why do we care about this
ES * Both build tools that need MCP observability
* Care about DevEx
*« Bad developer and user experience is threat to adoption
« CTOs/CISOs - Familiar observability is necessary for production
reer EN Hacerseis
INES) ree | nae
wd Ceikes se) SE hk ES 600 OO

OCR text:
‘Clientglraces)
ct th em el LUA
"support with @weave.op
Pt)
ere ae Co -« Docs: wandb.me/mcpop
peat bs &: mMicrosoft OWS gral?

OCR text:
https://observable:to0|S _i
Observable Tools
\ a
i | ee
t Ce Hi na , , 5 iD
TAM NTT
a a Real We +
| y
aaa SS 1 (e110) | a ES O00 OO
rere

OCR text:
OpentTelemetry - primitives
Traces
a Parente! 7 | | ear along | eager Stee , ee
[ee | i
_ ; , Si pehoaden
a 7 NM iCecekse) ae
| my aws 0
. = Microsoft Simol
wd [ae | al <a ee ‘

OCR text:
OpentTelemetry - primitives
Sink - Observability Platforms
Fhoaracos WO %¢ clastic splunk > XQ Sentry
a Nieree a penne
we u Microsoft AWS ec
ree | 2c 2 aw

OCR text:
Two Deployment Scenarios
for MCP enabled agents
ok Beers renee a
\ |. . Po AV aS fai ]
ne ee a Microsoft a> Ssimol

OCR text:
Different Domains
| _ au
reed oy er el
a :
i Semeey an cae on ec
aed mT aws es
en Pe Ble cecxe)at ES (nol

OCR text:
Same Domains
| ane ——————————
oiee 4 ao eal : 7
E POST ;
| Dikeoe
tes fetch o
. g + kine ———, chat mode.cal
PA ete ho ame nt | a
on
Vi aws fs)
Soa icrosoft
ree ae a AWS mae)

OCR text:
Context Propagation
recs cee: thas client es
name tcovilee. nane
arguments toallisr.argunents
_neta {
__traceContext {
traceld spar Q).traceld
spanId spen ().spanid
traceFlags span ().traceFlags
be3. sik eee ee
}
iH
Bae a });
TAD LCe\*) CS
LY
ss w Microsoft @WS ary?
a Saad all ad Pre Ya) [We wee)
Beas 4

OCR text:
Acknowledge prior work
« MCP Spec Github had several proposals and code examples
ES * RFC #246 by Sam Spencer proposes contextPropagation
« Justin from the Steering Committee suggested a community convention
rather than integrating into spec
* Openinference group started adapters
rE iliuwccananeae yen #25 LA Te place where
ee a Tee om
(Ay panienonivaiany
nealing ene a 5 Reo
vero a
me | ro |: A ©
‘awn aCe colon a Ssimol

OCR text:
Observable|MCPATOOLS
usingJOTELandmmeta Pe |
_ ,
/ MCEISERVERRACES
reat om Biren en 0
a |
ee a
De ha ae
ccom wit’ ~—trom = Microsoft SWS aaa®

OCR text:
Weave OTel example as well
a Reena eee. ae
WANOB_API_KEY
WANOB PROJECT _ID ,
part ae a Pree ri
fh
cen A ew iG
Sirah g
ee 1100-00 OO

OCR text:
Magic MCP moment
with Opus 4 & Windsurf
“ an os . oe RNS! eer
Tn ee EY [Tol goto SMES ero?

OCR text:
MagicMcPmoment
withOpus4&Windsurf
AIE
Great! The test is working.Letme wait a moment for the traces to be
sent to Weave and then checkif the inputs/outputs arenow properly
mapped:
Ranterminalcommand
/mcp-otelSsleep10
Auto-run
MCPTool:wandb/query_weave_traces_tool
orld'sFair
um
Wo
Microsoft
aws
smol°
Aladd'Eain

OCR text:
Magic MCP moment |
with Opus 4 & Windsurf
ae mera) etd a ticrose 7
a ona ; a PSSA Riaa7 Pe
ee a enV [ecesseyit eS Sinol

OCR text:
mcp.run - Profiles & Tasks
Example: A “Work Assistant™ Profile
, . 3 ed it = pad 4 rh eke abe
a Nie ”. renee .
on -
_ : |. P4 Pa AV aSy at]
Ce D1 as ES SOD

OCR text:
Recap & Call to action
EG * MCP observability is possible today!
* OTel to the rescue with contextPropagation
* mcp.run will support OTel exports
« W&B support both bespoke and via OTel
ne ee Jaity ce ais
\\
yy . .
aS hte h aad it nd Bee S , rns
Sete eta g
mY aws = semac®
iia Pee LU L(ceto) 1 z

OCR text:
Call to Action
Al Engineers:
* Think about observability
« Work on high level SDK adapters like Openinference
* Work on conventions (genai semantic conventions)
Platform Builders:
* Add OTel support
1w RFCs
coos - ery ule talk to us about your ideas about MCP observability
Wl
_* 7 | 4
apatite’ <3 m Microsoft OWS a?
Wiartielle Eaivr

OCR text:
mae / Alen ;
orid'sFair|. - Mdaily [World *~ ::] am Mic
eT |
f | Se
San a ore | rae
Es a °° Lael
| elite karl |
PE caeons | Woit | brain

OCR text:
| eee aE
eee ed ed
) H . - " . a | 0
Reed . PN | World's Fair | _ > 3 Microsof
“ ’ ie :
2 ae 3
Vi ee of _ PP Ita ne aaa
S SENTD vege TT Me Ae a SET d's Fair
| World's Fair |
aa ed Ne | ) ;
Ld Microsoft | World's Fair | sintrust
Slide-Derived Subjects To Review
Subject extraction uses video title, related session titles/descriptions, transcript context, and OCR text when available. OCR is best-effort and should be reviewed against the embedded slide images.