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Clean up MCP sessions on delete - #27

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@lucarliglucarlig commented Jun 2, 2026•
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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.

This PR:

  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency

Verification:

  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench

@lucarliglucarlig mentioned this pull request Jun 2, 2026
Merged
@lucarlig
lucarligforce-pushed the user/luca/mcp-session-delete-cleanup branch from 8f7a9a7 to dba60c8CompareJune 2, 2026 13:01
@lucarlig
lucarlig requested a review from dawid-nowakJune 2, 2026 13:41
@lucarlig
lucarligforce-pushed the user/luca/mcp-session-delete-cleanup branch from dba60c8 to 65ca993CompareJune 3, 2026 08:46
@lucarlig
Add session cleanup primitives
796f8a1
Signed-off-by: lucarlig <luca.carlig@ibm.com>
@lucarlig
lucarligforce-pushed the user/luca/mcp-session-delete-cleanup branch 3 times, most recently from d53aa18 to eab6832CompareJune 3, 2026 13:58
@lucarlig
Clean up MCP sessions on DELETE
3e5387f
Signed-off-by: lucarlig <luca.carlig@ibm.com>
@lucarlig
lucarligforce-pushed the user/luca/mcp-session-delete-cleanup branch from eab6832 to 3e5387fCompareJune 3, 2026 14:17
dawid-nowak
dawid-nowak requested changes Jun 3, 2026
View reviewed changes
Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs Outdated
Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs Outdated
Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs Outdated
@lucarlig
lucarligforce-pushed the user/luca/mcp-session-delete-cleanup branch 4 times, most recently from 1ad0d13 to a570c24CompareJune 3, 2026 16:05
@lucarlig
lucarlig requested a review from dawid-nowakJune 3, 2026 16:16
@lucarlig
lucarligforce-pushed the user/luca/mcp-session-delete-cleanup branch from a570c24 to e5dbcb3CompareJune 4, 2026 08:09
@lucarlig
Simplify session delete middleware flow
7db1d3c
Signed-off-by: lucarlig <luca.carlig@ibm.com>
@lucarlig
lucarligforce-pushed the user/luca/mcp-session-delete-cleanup branch from e5dbcb3 to 7db1d3cCompareJune 4, 2026 08:11
@dawid-nowak
dawid-nowak merged commit b53258e into mainJun 4, 2026
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Clean up MCP sessions on delete by lucarlig · Pull Request #27 · contextforge-org/contextforge-data-plane · GitHub
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Clean up MCP sessions on delete - #27
Merged
dawid-nowak merged 3 commits into
mainfrom 
user/luca/mcp-session-delete-cleanup
Jun 4, 2026
Merged
Clean up MCP sessions on delete#27
dawid-nowak merged 3 commits into
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user/luca/mcp-session-delete-cleanup
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@lucarlig
@lucarliglucarlig
commented
Jun 2, 2026•

edited

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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.
This PR:
  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency
Verification:
  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench
@lucarliglucarlig
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@lucarlig
Add session cleanup primitives
796f8a1
Signed-off-by: lucarlig <luca.carlig@ibm.com>
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Clean up MCP sessions on DELETE
3e5387f
Signed-off-by: lucarlig <luca.carlig@ibm.com>
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Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs
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Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs
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Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs
Outdated

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Simplify session delete middleware flow
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Signed-off-by: lucarlig <luca.carlig@ibm.com>
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Clean up MCP sessions on delete by lucarlig · Pull Request #27 · contextforge-org/contextforge-data-plane · GitHub
Skip to content
Clean up MCP sessions on delete - #27
Merged
dawid-nowak merged 3 commits into
mainfrom 
user/luca/mcp-session-delete-cleanup
Jun 4, 2026
Merged
Clean up MCP sessions on delete#27
dawid-nowak merged 3 commits into
mainfrom 
user/luca/mcp-session-delete-cleanup
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@lucarlig
@lucarliglucarlig
commented
Jun 2, 2026•

edited

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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.
This PR:
  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency
Verification:
  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench
@lucarliglucarlig
mentioned this pull request
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 Merged

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@lucarlig
Add session cleanup primitives
796f8a1
Signed-off-by: lucarlig <luca.carlig@ibm.com>
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Clean up MCP sessions on DELETE
3e5387f
Signed-off-by: lucarlig <luca.carlig@ibm.com>
@lucarlig
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View reviewed changes
Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs
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Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs
Outdated

Comment threadcrates/contextforge-gateway-rs-lib/src/layers/session_id.rs
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@lucarlig
Simplify session delete middleware flow
7db1d3c
Signed-off-by: lucarlig <luca.carlig@ibm.com>
@lucarlig
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Clean up MCP sessions on delete by lucarlig · Pull Request #27 · contextforge-org/contextforge-data-plane · GitHub
Skip to content
Clean up MCP sessions on delete - #27
Merged
dawid-nowak merged 3 commits into
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user/luca/mcp-session-delete-cleanup
Jun 4, 2026
Merged
Clean up MCP sessions on delete#27
dawid-nowak merged 3 commits into
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@lucarlig
@lucarliglucarlig
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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.
This PR:
  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency
Verification:
  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench
@lucarliglucarlig
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Add session cleanup primitives
796f8a1
Signed-off-by: lucarlig <luca.carlig@ibm.com>
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Clean up MCP sessions on DELETE
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Simplify session delete middleware flow
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Clean up MCP sessions on delete by lucarlig · Pull Request #27 · contextforge-org/contextforge-data-plane · GitHub
Skip to content
Clean up MCP sessions on delete - #27
Merged
dawid-nowak merged 3 commits into
mainfrom 
user/luca/mcp-session-delete-cleanup
Jun 4, 2026
Merged
Clean up MCP sessions on delete#27
dawid-nowak merged 3 commits into
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@lucarliglucarlig
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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.
This PR:
  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency
Verification:
  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench
@lucarliglucarlig
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, 'i');
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// Auto-enable theater mode on YouTube
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var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
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Clean up MCP sessions on delete by lucarlig · Pull Request #27 · contextforge-org/contextforge-data-plane · GitHub
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Clean up MCP sessions on delete - #27
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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.
This PR:
  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency
Verification:
  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench
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// Remove or un-stick sticky/fixed headers that block content
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function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
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Clean up MCP sessions on delete by lucarlig · Pull Request #27 · contextforge-org/contextforge-data-plane · GitHub
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Clean up MCP sessions on delete - #27
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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.
This PR:
  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency
Verification:
  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench
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Add session cleanup primitives
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// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
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style.id = 'universal-dark-mode-style';
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Clean up MCP sessions on delete by lucarlig · Pull Request #27 · contextforge-org/contextforge-data-plane · GitHub
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Clean up MCP sessions on delete - #27
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Clean up MCP sessions on delete#27
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Splits MCP session DELETE cleanup out of the larger session/SSE work so this PR stays focused.
This PR:
  • replaces the custom tower-layer session-id layer with Axum middleware state so DELETE can run cleanup after RMCP handles the request
  • keeps Mcp-session-id optional; requests without the header pass through, including DELETE
  • inserts SessionId extensions when the header is present, then uses match request.method() to run DELETE cleanup only after a successful downstream response
  • scopes stored user sessions by authenticated principal plus downstream MCP session id
  • scopes backend transport keys and cleanup by authenticated principal plus downstream MCP session id, so one user cannot clean up another user
  • removes the session-store entry and in-memory backend transports after RMCP accepts DELETE
  • removes the now-unused tower-layer dependency
Verification:
  • cargo fmt --all --check
  • cargo clippy --locked --workspace --all-targets -- -D warnings
  • cargo test --locked --workspace
  • CI: fmt, clippy, cargo-deny, cargo-shear, test, build, bench
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