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feat(mcp): modern MCP (2026-07-28) servers beside MCPL, over stdio and Streamable HTTP - #262

Merged

nissa-seru merged 102 commits into

anima-research:mainfrom

nissa-seru:feat/modern-mcp-client

Oct 18, 2026

Merged

feat(mcp): modern MCP (2026-07-28) servers beside MCPL, over stdio and Streamable HTTP#262
nissa-seru merged 102 commits into
anima-research:mainfrom
nissa-seru:feat/modern-mcp-client

Commits on Oct 8, 2026
- feat(mcpl): type MCPL request failures by what reached the server
  
  authored and
  Olive-1804
  committed
  10380dd
- feat(mcp): legacy engine's protocol boundary, family selection, paginated tools/list
  Olive-1804
  committed
  2c9aff1
- feat(mcp): ModernMcpConnection — MCP 2026-07-28 over stdio and Streamable HTTP via SDK 2.x
  Olive-1804
  committed
  3a3104c
- fix(mcp): review corrections to batches 1–2, outcomes from wire evidence and owned lifetimes
  Olive-1804
  committed
  7f7e91b
- fix(mcp): second review round, continuation scope, reaping, malformed frames, startup stderr
  Olive-1804
  committed
  9a27108
- feat(mcp): modern servers in the framework, standard result reading, structured results
  Olive-1804
  committed
  f9954a5
- fix(mcp): integration review, connect ownership, result views, selectors, reap verdicts
  Olive-1804
  committed
  b32cd73
- fix(mcp): an unreapable failed launch halts reconnecting instead of orphaning it
  Olive-1804
  committed
  477d993
- fix(mcp): concurrent ModernMcpConnection.close() calls share the teardown
  Olive-1804
  committed
  8b74d24
- fix(mcp): a stopping or stopped framework admits no new server connection
  Olive-1804
  committed
  3aeea4c
- fix(mcp): keep a cleanup failure in the legacy stopped-while-connecting refusal
  Olive-1804
  committed
  ee4d424
- fix(mcp): one owner for every launch and every server id
  Oscar-1826
  committed
  91d2411
- fix(mcp): saved tool results never overwrite each other; pin the script cap
  Oscar-1826
  committed
  7e0a97c
- fix(mcp): one reconnect attempt at a time; a disconnect ends a connect in flight
  Oscar-1826
  committed
  c35d286
- fix(mcp): a call that ends before the server's final answer is no-response
  Otis-1924
  committed
  df209f2
- feat(mcp): warn when a server's credential would cross the network unencrypted
  Otis-1924
  committed
  0adf92e
- fix(mcp): a protocol-version verdict at startup raises the ops alert
  Otis-1924
  committed
  660ed6f
Commits on Oct 11, 2026
- fix(mcp): the tool-result normalizer drops nothing silently, keeps inline only what a provider takes, and a failed save is a lost payload
  
  authored and
  Ada-1017
  committed
  f56d854
- fix(mcp): one transport rule for every selector, credentials kept out of logs and status, and refusals for settings that would be ignored
  
  authored and
  Ada-1017
  committed
  6d0ab41
- fix(mcp): the modern engine classifies refused sends and HTTP refusals by what reached the server; a revision refusal is never retried
  
  Olive-1011
  authored and
  Ada-1017
  committed
  f1a6e8f
- fix(mcp): hold a server's id until its child is confirmed exited, everywhere, and keep the tool list and traces true
  Ada-1017
  committed
  559ecaa
Commits on Oct 12, 2026
- fix(code-execution): a script's structured result gives an MCPL peer's blocks the treatment the model's lanes give them, and a reference its id and saved path
  Ada-1017
  committed
  5abaf9f
Commits on Oct 13, 2026
- fix(code-execution): a script is told what its tool functions return, and a result JSON can't hold is an error naming the tool
  Ada-1017
  committed
  58ea8e4
- Merge main (956c6d2) into feat/modern-mcp-client: one shutdown lifecycle from #221's and this branch's
  Ada-1017
  committed
  501817f
- fix(mcp): the modern engine's teardown follows the MCPL engine's contract, and a reap failure names its server
  Ada-1017
  committed
  0baafd0
- fix(mcp): an http(s) url can't carry userinfo, and a script reads a standard peer's malformed result as the model does
  Ada-1017
  committed
  2f0382a
- test(mcp): an auth wall on a later round of a call is a no-response, driven over HTTP
  
  Basil-1007
  authored and
  Ada-1017
  committed
  75391e7
- fix(mcp): a restart refuses a colliding tool prefix before tearing the server down
  
  Basil-1007
  authored and
  Ada-1017
  committed
  82ebcfd
- fix(mcp): one rule for a query name that may itself be a credential; tests for absent content and a bare throw
  Ada-1017
  committed
  1b815b9
- fix(mcp): a restart refuses a taken id or a stopping framework before tearing the server down
  
  Basil-1007
  authored and
  Ada-1017
  committed
  d69add3
- fix(mcp): redact configured credentials from recorded server text
  
  Rosalind-2359
  and
  codex
  committed
  b0a2daf
- test(mcp): initialize server configuration in the observe wire fixture
  
  Rosalind-2359
  and
  codex
  committed
  11bfe47
- perf(mcp): a connection's records build their redaction once
  Ada-1017
  committed
  d4f8493
- fix(mcp): recorded-text redaction covers the token as a url carries it, credential env values, and any value; it replaces only whole strings
  Ada-1017
  committed
  fa29b6e
- fix(mcp): every record of server text is redacted, a restart refuses an operation in flight, and a disconnect keeps another server's prefix
  Ada-1017
  committed
  a49e74f
- fix(mcp): a record of server text keeps the configuration its operation began under
  Ada-1017
  committed
  8c75a67
- fix(mcp): only a short pair needs its boundary; a 401 or 403 is a refusal however it's raised; the last unredacted records
  Ada-1017
  committed
  f62c02e
- fix(mcp): the policy request's records use one redactor taken before it waits, and log the fallback the host takes
  Ada-1017
  committed
  5dc695f
- docs(mcp): a submitted configuration is the caller's to keep unchanged; the texts say removed or replaced
  Ada-1017
  committed
  665ea4e
- fix(mcp): every name=value pair keeps its boundary; env names in the plural; the every-server redactor covers servers connected meanwhile
  Ada-1017
  committed
  a2bd86f
- fix(mcp): only string env values are derived; more credential words; a refresh redacts with the configurations it began with
  Ada-1017
  committed
  5d27d07
- fix(mcp): a refresh's tool policy and prefix read the live configuration; only its failure record uses the snapshot
  Ada-1017
  committed
  a36f8ea
- fix(mcp): the modern tools/list refresh reads each server's configuration as before
  Ada-1017
  committed
  69ce7ec
- Merge main (197a8491, #263) into feat/modern-mcp-client
  Ada-1017
  committed
  c4eb1e8
- fix(mcp): a server request handler's failure is recorded with the connection's redactor, before it's cut
  Ada-1017
  committed
  7c76a2e
Commits on Oct 14, 2026
- fix(mcp): a restart holds the id and tool prefix it moves its server to
  Ada-1017
  committed
  4f02562
- Merge main ab5f1183 into the modern MCP client
  Ada-1017
  committed
  9fad7b2
- test(mcp): a restart of an id another restart holds is refused
  Ada-1017
  committed
  379490b
- fix(mcp): what main's merge left: a script's reference names its expiry, and only a legacy connect reads the ledger
  Ada-1017
  committed
  aafc2a8
- docs(changelog): a script's expired reference carries expired
  Ada-1017
  committed
  a02525a
- test(baseline): command + URL with no transport is refused, as this branch's binding rule says
  Ada-1017
  committed
  c5763d3
- fix(mcp): what the full run and the round's readers found
  Ada-1017
  committed
  792ef25
- test(baseline): the platform tests' registry stub answers getServer
  Ada-1017
  committed
  e773a45
- test(mcp): the every-server redactor's one pass spans the configurations it read when made and those present now
  Ada-1017
  committed
  350c659
- fix(mcp): redact a username alone, JSON's escapes, and overlapping credentials
  Ada-1017
  committed
  7bffdca
- fix(mcp): a disconnect or stop() during a restart ends it, and says the server is down
  Ada-1017
  committed
  96c8526
- test(mcp): a stop() that begins in a restart's gap ends it, and says the server is down
  Ada-1017
  committed
  8a2d4f7
- test(mcp): match the restart's refusal as assert.rejects reads it, with its Error: prefix
  Ada-1017
  committed
  3168cd4
- fix(mcp): say which disconnect ends a restart; the test server answers what it doesn't know
  Ada-1017
  committed
  406164e
- Merge main cd036e0d into the modern MCP client: one stop rule for MCP operations
  Ada-1017
  committed
  0535033
- fix(mcp): stop() and a disconnect end a connect in flight at once, in either engine
  Ada-1017
  committed
  ae1a568
- fix(mcp): an aborted legacy connect says why as a modern one does; the abort map is made on first use
  Ada-1017
  committed
  5a34a2f
- fix(mcp): stop() ends a connect past its handshake too: its setup and its tool listing
  Ada-1017
  committed
  3f8304e
- fix(mcp): a disconnect of the id a restart moves to ends the restart, even one that finishes first
  Ada-1017
  committed
  636ddd7
- fix(mcp): a refresh overtaken by a later one publishes nothing, so a restart's old listing can't come back
  Ada-1017
  committed
  1d47151
- fix(mcp): ModernMcpConnection.connect hands back the owner of a launch its cleanup couldn't reap
  Ada-1017
  committed
  4fa550d
Commits on Oct 15, 2026
- fix(mcp): MCPL policy on a modern server is refused only where its value grants something (R1-3)
  
  Crispin-2406
  and
  claude
  committed
  0576868
- fix(mcp): a modern child that exits during its connect's list-change subscribe fails the connect (R1-2)
  
  Crispin-2406
  and
  claude
  committed
  42eb65c
- docs(mcp): listMcplServers' family and transport are null only when no binding resolves (R1-7)
  
  Crispin-2406
  and
  claude
  committed
  74574fe
- fix(mcp): a lost modern session is reaped before the reconnect, and close() waits for that reap (R1-1)
  
  Crispin-2406
  and
  claude
  committed
  0fbb71e
Commits on Oct 16, 2026
- Merge main 91e70eda into the modern MCP client: #344's spawn wait and transport listeners, and TypeScript 7
  
  Crispin-2406
  and
  claude
  committed
  c59efc4
- test(mcp): a modern stdio command that can't be spawned fails its connect at once, with its spawn error (R1-4)
  
  Crispin-2406
  and
  claude
  committed
  59f1986
- test(mcp): narrowing MCPL policy on a modern server raises no warning either (R1-3)
  
  Crispin-2406
  and
  claude
  committed
  023728d
- fix(mcp): a modern server accepts MCPL allow-lists, refusing only enabledCapabilities that name a capability denied by default (R1-3)
  
  Crispin-2406
  and
  claude
  committed
  2789a9f
- fix(mcp): close() during a modern stdio connect's spawn closes the child it yields
  
  Crispin-2406
  and
  claude
  committed
  0ab25e5
- docs(mcp): the modern-server refusal list says exactly which values are refused (R1-3)
  
  Crispin-2406
  and
  claude
  committed
  c7eda6c
Commits on Oct 17, 2026
- fix(mcp): a refresh dropped as older starts one more when it held a listing the published one lacks
  
  Crispin-2406
  and
  claude
  committed
  87d1ae1
- fix(mcp): a listing begun before its server's session closed publishes nothing, so its class hints stay dropped
  
  Crispin-2406
  and
  claude
  committed
  d1e6e16
- fix(mcp): a connect whose server is disconnected while its tools are listed fails, as a restart's does
  
  Crispin-2406
  and
  claude
  committed
  6d5962f
- fix(mcp): a connection's credential patterns come from what each dial sends: the query as re-encoded, and an access provider's token
  
  Crispin-2406
  and
  claude
  committed
  efa0780
- docs(mcp): a call paused at input_required has no cancel, so the server keeps its state until its own timeout
  
  Crispin-2406
  and
  claude
  committed
  6c47617
- fix(mcp): a connect and a listing count only while their connection serves, and the redactor covers what each dial sent
  
  Crispin-2406
  and
  claude
  committed
  f98a657
- docs(mcp): the stdio-only configuration copy says why a dialing configuration isn't copied
  
  Crispin-2406
  and
  claude
  committed
  f8a5bf6
- fix(mcp): a lost modern session's id is held until its reap is confirmed, and the review's other findings since 322c67a3
  
  Crispin-2406
  and
  claude
  committed
  6bad04c
- fix(mcp): a server the host has given up on leaves the tool list, and its child stays owned until its exit is confirmed
  
  Crispin-2406
  and
  claude
  committed
  b965af0
- fix(mcp): a failed recycle of a server without reconnect takes its tools out of the list
  
  Crispin-2406
  and
  claude
  committed
  179f66f
Commits on Oct 18, 2026
- Merge main 86a36834 into feat/modern-mcp-client
  
  Crispin-2406
  and
  claude
  committed
  6662cb1
- docs(mcp): name the one configuration that worked before and is now refused
  
  Crispin-2406
  and
  claude
  committed
  3c043d5
- test(mcp): a failed create() closes a modern server it had connected
  
  Crispin-2406
  and
  claude
  committed
  cddfc19
- test(mcp): a disconnect during a restart's tool listing ends the restart
  
  Crispin-2406
  and
  claude
  committed
  5237b6d
- Merge main e6703634 into feat/modern-mcp-client
  
  Crispin-2406
  and
  claude
  committed
  5bcf3fd
- fix(mcp): a stdio child whose pipe failed is killed if it ignores SIGTERM, and no request is written after the failure
  Crispin-2406
  committed
  323a32a
- docs(mcp): closeSession never rejects, which the loss path relies on
  
  Crispin-2406
  and
  claude
  committed
  b75b6fa
- fix(mcp): a failed close for good takes the tools off, a held launch's failure reaches its listeners, and nothing is written after a pipe fails
  
  Crispin-2406
  and
  claude
  committed
  bd24be7
- docs(mcp): under Bun a child that closes its stdin isn't reported, so request timeouts bound it
  
  Crispin-2406
  and
  claude
  committed
  991eb1a
- fix(mcp): a queued manifest refresh logs a failed close, and the texts on a held launch's reports and a connect-time hold say what the code does
  
  Crispin-2406
  and
  claude
  committed
  6dfee0e
- docs(changelog): a connection closed by a pipe failure reconnects only if it would after any exit
  
  Crispin-2406
  and
  claude
  committed
  0faeab1
- docs(mcp): the stdio pipe failure's texts claim what the tests show, and say Bun emits no 'error' event
  
  Crispin-2406
  and
  claude
  committed
  988fca9
- Merge main 124edb46 into feat/modern-mcp-client
  
  Crispin-2406
  and
  claude
  committed
  a79a56d
- test(mcpl): the merge's loose ends: a startup test waits for initialize, two stubs drop mcplConnecting, and #506's fragment names the restart it covers
  
  Crispin-2406
  and
  claude
  committed
  3f343d6
- test(mcp): a modern server's tool prefix meets another server's under #469's rule
  
  Crispin-2406
  and
  claude
  committed
  fffa857
- docs(mcp): #506's in-flight words hold during a legacy handshake only
  
  Crispin-2406
  and
  claude
  committed
  b1ce54c

Commits

Commits on Oct 8, 2026

Commits on Oct 11, 2026

Commits on Oct 12, 2026

Commits on Oct 13, 2026

Commits on Oct 14, 2026

Commits on Oct 15, 2026

Commits on Oct 16, 2026

Commits on Oct 17, 2026

Commits on Oct 18, 2026