supported_version and minimum_version sat in 24 roles and were read by no template, no task and no lookup. Their only consumer was the audit report version column, which turned false the moment an automated image bump ran: qdrant reported a verified version nobody had verified, two releases long. Both leave MCP_KEYS, so a role that declares them again fails the schema lint instead of carrying a field with no effect.
Requirement 025 mandated minimum_version as a MUST and 035 carried it in an example; both are corrected here, otherwise the repository would contradict its own code.
The gate then surfaced five dead docs.mattermost.com links. Mattermost moved to /administration-guide/ and /deployment-guide/, and every replacement was probed for 200 rather than guessed. The MCP page is gone with no successor, so mattermost now points at mcpserver/README.md in the Agents repository, the source rather than a rendered mirror.
Both concerns share three files - mattermost's meta/mcp.yml, requirement 025, and the generated audit.md, which derives from a source of each - so splitting them would commit an artifact that does not match its sources.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The contract check ran as an Ansible task in the middle of every provider deploy, and the two client checks ran the same way. A test that is part of the deploy cannot be run without deploying, cannot be re-run on its own, and reports its verdict as a deploy failure. Twenty-seven task files lose 491 lines to this.
It is now what it always was. Each provider ships files/test/test.sh, templates/test.env.j2 and meta/tests.yml, and test-e2e-cli stages one shared harness beside it: run.sh drives contract.sh in a throwaway container on the provider's own network, then isolation.sh for adapter-fronted providers. The read probe each provider offers moved from the calling task into meta/mcp.yml next to the allowlist it must satisfy, and the schema now rejects a read probe naming a tool outside that allowlist.
The bearer the test presents is the one a client resolves through mcp.credential, via the new mcp_client_bearer lookup over resolve_credential, which moved to utils.roles.applications.mcp so it is the same function mcp_servers renders every client connection with. The probe presented whatever the calling role passed, which for the fifteen adapter-fronted providers is a different secret than any client holds.
Sidecar isolation is read from the engine rather than measured inside the container, so it no longer needs a delegation to the node holding the task: attachment is compared by network name, which drops the gwbridge special case, and a swarm worker says it cannot measure instead of skipping silently.
Retrying is bounded by wall clock against MCP_DEADLINE_SECONDS, which scales through the same lookup('timeout') as the harness budget it has to stay under. A flag that is neither true nor false aborts rather than reading as off.
mcp-provider-probe becomes mcp-provider-cli-test: an enabled provider must ship the test rather than include the task. mcp-probe-bearer becomes mcp-adapter-bearer, tying ADAPTER_BEARER to the declared credential key now that no probe include carries it. A new integration test renders the shared env template for every provider through Ansible's own templar, so a later change to it breaks visibly instead of poisoning twenty deploys quietly.
Hermes and OpenClaw keep their client-side proof as CLI tests of their own.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
enabled and shared were hand-maintained in 24 roles and wrong in both
directions. Both now resolve from the mcp_consumer edges already declared
in meta/services.yml: a server takes the consumers it admits, a client
takes the servers that admit it, and the pair renders as "'peer' in
group_names or ...", or False when no peer is admitted at all. setdefault
keeps meta/mcp.yml and meta/variants.yml as the override channel, so
pinning either key still wins.
The resolved block replaces the mapping instead of being written into it.
_build_role_base_config parks the YAML cache's own object under mcp, so an
in-place setdefault injected the derived keys into every later raw read and
made test_mcp_schema pass alone but fail in a directory run.
The derivation keys on peer presence, never on a peer's own value: a
re-entrant read under _RENDER_GUARD returns the unrendered dict.
Four lints now ask the resolver instead of reading meta/mcp.yml, which they
could not do while the key was hand-written. That is what exposed the eleven
missing hostile-path specs the previous commit closed.
Carries one change that belongs to the WordPress probe but shares a file
with this one: the tool allowlist moves to the hyphenated names the adapter
actually serves.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
allowed_consumers was twenty hand-kept lists of which fourteen were identical, so every new client meant an edit in every provider. A client now declares services.<own-entity>.mcp_consumer: true once and a provider refuses one with mcp_consumer: false, which is also what tells a deliberate exclusion apart from a forgotten entry.
The group_names-gated consumer entries give the inventory resolver the co-deploy edge meta/mcp.yml never had: one of sixty-nine matrix rounds carried an MCP client before, twenty-three role/round pairs do now. bond 0.5 keeps the clients out of round 0 so the host memory budget still holds.
BREAKING CHANGE: meta/mcp.yml no longer accepts allowed_consumers; declare services.<entity>.mcp_consumer on the client instead.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
f5272fa85f derived the 404 from mcp.endpoint.path, which for an
adapter-fronted provider names the sidecar. Mattermost declares /mcp
there and answers on /plugins/mattermost-ai/mcp-server/mcp, so the proxy
blocked a path the application never served while the native surface
stayed reachable. Baserow passed only because its two paths coincide -
one role agreeing proved nothing about the other four.
That surface is what the adapter exists to narrow: it serves four tools
out of fourteen, and the native path reaches all fourteen.
adapter.upstream_path joins upstream_network and upstream_transport in
meta, and the four roles whose upstream lives on their own vhost declare
it there. Gitea does not: its upstream is a separate sidecar on its own
network, so it has nothing to hide on the application's vhost, and the
absence says that.
The roles read the value back through lookup('config', ...) rather than
keeping a second copy, so the path is stated once.
The template now separates the two roles the old variable conflated:
endpoint.path is what gets served, and only where the surface is public
and enabled; every declared path that differs from it gets a 404. Three
tests pin the distinction rather than the outcome - mattermost's two
paths must differ, gitea must declare none, and a passthrough provider
must say where its upstream lives.
Requirement 035 asks that mutating variants test confirmation,
authorization, idempotency, audit and rollback apart from the read-only
ones. No surface enables mutations, so those tests would assert against
nothing and pass forever, and inventing a mutating variant to satisfy the
checkbox would be a claim rather than a check.
The guard is what survives that emptiness: a surface permitting mutations
must name an existing artifact per proof, so the day one ships it cannot
ship without them. Three synthetic blocks exercise the rule - none, ones
naming a file that is not there, and ones that are - because a rule
evaluated over zero matching roles is green by construction. The reverse
also holds: proofs declared while mutations are off name artifacts that
are never the thing under test.
mutating_proofs was missing from the schema keys, so the lint would have
rejected the very block it demands.
Baserow was the only role declaring endpoint.key_credential, and putting
the adapter in front of it left the field with no consumer. Keeping it
would also contradict the decision that put the adapter there: a secret
in the URL path cannot be scoped per consumer and cannot be revoked on
its own, so a provider authenticating that way belongs behind an adapter
rather than in a client's rendered configuration. The segment now stays
between the adapter and its upstream.
Discovery loses a config lookup per provider per client along with the
branch. The test that proved the segment was appended becomes its
inverse: an endpoint still declaring the field gets a URL without one, so
the decision is held rather than merely unproven.
Both agents registered every tool every provider served. Hermes documents that as its own default in tools/mcp_tool.py, "Neither set -> register all tools", and the role never set tools.include; OpenClaw's toolFilter was never rendered at all. A provider that grew a mutating tool would have reached both without anything declaring it.
A serving role now names its mutating tools, the discovery snapshot carries that set beside the allowlist, and every client renders the allowlist minus it in whatever form its upstream enforces. The subtraction sits at the client and not in discovery because Flowise compares the declared set against what its registry actually discovered and needs the full served list. Where a provider permits mutations there is nothing to withhold, so the set renders empty.
This is a client-side boundary, not a server-side one: whoever holds the endpoint key can still call a write tool directly. Baserow is the case that made it necessary, since its MCPEndpoint model carries no scope and its owner is a workspace administrator, so the declared mutating_tools_enabled bounds nothing there.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
gitea-mcp holds no credential and expects a token per request, so anything
on the provider's network reached it directly and skipped the adapter's
allowlist and limits. A private internal network fixes that, but the
isolation guard admitted exactly one subnet and rejected the adapter for
holding a second, reading a narrower attachment as a wider one.
Teach the guard the concept instead of working around it: a provider may
declare adapter.upstream_network, and the guard resolves that network and
adds its subnet to the expected set. Providers without one are unchanged.
web-app-gitea is the first consumer: the sidecar now joins the private net
and nothing else, bridge under compose and overlay under swarm, while gitea
and the adapter join it alongside their own attachments.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The adapter was the only image in the tree pinned by a hand-maintained digest,
and the pin was never recomputed by anything. It drifted twice: run 31374959721
lost seven of eight jobs to mirror/docker.io/python@sha256:6771159c... not
found, and the renewal to the newest upstream digest earlier today would have
reproduced it, because builds resolve FROM against the GHCR mirror while the
mirror is copied by tag and lags upstream by design.
The base is now FROM <image>:<version>, taken from the sidecar service in
meta/services.yml - the only file iter_role_images scans, so the tag the build
asks for is by construction the tag the mirror was told to copy. The version
moves from the moving 3.13-slim to 3.13.15-slim, which upstream stops rewriting
once published, and which the existing version drift job renews like every other
image.
With the build reading services.yml, the adapter block's digest, image and
version had no consumer left. They are removed together with the schema check
for the digest form, the warn-only drift test, and the manifest_digest helper
that existed only for it. What remains in the block describes the adapter rather
than the image it is built from.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
tools.allowlist meant two things at once: the surface a consumer may reach,
which is a decision of ours, and the surface the upstream offers, which the
vendor changes without asking. Conflating them made a version bump read as a
contract violation, and left no place to record what was actually measured.
Split them. allowlist stays policy; upstream_serves records the observation at
supported_version. State the second only where it DIFFERS, because a provider
that serves exactly what is allowed would otherwise carry the same list twice
and the copies would drift apart. Absence means identical.
The difference between the two measures unenforced exposure: mattermost 103,
gitlab 2, and zero wherever the fields collapse. A non-empty difference is what
tells us a provider needs a gateway in front of it.
Require a non-empty allowlist for an enabled, non-adapter, server-capable
provider. An empty one used to make the probe's comparison vacuous, which read
as a pass while every tool the upstream serves stayed reachable. Nextcloud was
in exactly that state.
Three exemptions, all semantic: an adapter authors its tools here against a
REST upstream, so there is nothing to observe; a provider declared
enabled: false is never admitted; and upstream_serves: dynamic covers an
upstream composing its surface at runtime, which nextcloud does by proxying
MCP servers an administrator configures.
Reject an allowlist naming a tool the upstream does not serve. That found
mattermost's add_user_to_channel, gone since 11.10.0 renamed it
add_channel_member, which would have been advertised and never callable.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The block sat under services but never behaved like a service. A service has
exactly one providing role, declared with provides, so the registry can map the
key to that role and consumers bind their flag to its presence. No role declares
provides: mcp. There are seventeen providers and the pairing is done by
allowed_consumers inside the block itself.
Every rule that enforces the service model therefore needed an exemption for it:
a shared-provider suppression in fourteen roles, a playwright-service-flag
suppression, and two freshly added exemptions in the dynamic-flag and
variants-static-override checks. Four independent rules, four escape hatches,
one cause. They are all gone now, together with a bond key that only the
resource budgeter reads and only for entries under services, and a wordpress
addon bridge that pointed at a service block that no longer exists.
The block moves to meta/mcp.yml. The applications loader maps meta/<name>.yml to
applications.<app>.<name> generically, so the move needs no wiring; the file
takes the same shape as meta/rbac.yml. Every config path follows, the variant
overrides are lifted out of their services map, and the vocabulary module leaves
the services package because it no longer describes one. roles_with_service
gains an explicit topic parameter rather than an implicit fallback, so nothing
silently resolves against the wrong container.
Files that are otherwise unrelated to this move are included where the committed
tree would otherwise keep pointing at a path that no longer resolves: thirteen
vars files, eleven playwright env templates and one task file.
kevinveenbirkenbachandClaude Opus 5