bug-ops · bug-ops · Aug 25, 2026 · Aug 25, 2026 · Aug 25, 2026
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -1,13 +1,11 @@
 name: CI
 
-# `toolchain:` is pinned to "1.97" (matches root Cargo.toml's rust-version) across every
+# `toolchain:` is pinned to "1.98" (matches root Cargo.toml's rust-version) across every
 # job below, rather than a rolling `stable`. dtolnay/rust-toolchain@stable with an
-# unpinned toolchain floats to whatever the latest stable release is at run time; Rust
-# 1.98.0 introduced new clippy lints (clippy::unused_async_trait_impl,
-# clippy::chunks_exact_to_as_chunks) that broke this workflow on ~105 pre-existing call
-# sites the moment CI first ran on it, unrelated to whatever PR happened to trigger that
-# run. Pin stays until the pre-existing lint violations are cleaned up (#6746); bump
-# deliberately alongside that cleanup, not as a side effect of a rolling toolchain.
+# unpinned toolchain floats to whatever the latest stable release is at run time, which
+# has previously broken CI the moment a new clippy lint landed unrelated to whatever PR
+# triggered the run (#6746). Bump the pin deliberately alongside a cleanup pass for any
+# new lints the target version introduces, not as a side effect of a rolling toolchain.
 
 on:
   push:
@@ -164,7 +162,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
           components: clippy
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
@@ -173,7 +171,7 @@ jobs:
         run: cargo clippy --profile ci --workspace --all-targets --features ${{ matrix.features }} -- -D warnings
 
   msrv:
-    name: MSRV check (1.97, ${{ matrix.label }})
+    name: MSRV check (1.98, ${{ matrix.label }})
     needs: detect-changes
     if: needs.detect-changes.outputs.run-full-ci == 'true'
     runs-on: ubuntu-latest
@@ -190,7 +188,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           shared-key: "msrv-${{ matrix.label }}"
@@ -260,7 +258,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           cache-targets: "false"
@@ -495,7 +493,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           cache-targets: "false"
@@ -575,7 +573,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           shared-key: "ci"
@@ -607,7 +605,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           shared-key: "ci"
@@ -714,7 +712,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           shared-key: "ci"
@@ -747,7 +745,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           cache-targets: "false"
@@ -774,7 +772,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           cache-targets: "false"
@@ -798,7 +796,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           shared-key: "ci"
@@ -854,7 +852,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - uses: dtolnay/rust-toolchain@4360b52568e2003a75bf9bc1d59f33a8e3fc893c # stable
         with:
-          toolchain: "1.97"
+          toolchain: "1.98"
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
         with:
           shared-key: "ci"

diff --git a/AGENTS.md b/AGENTS.md
@@ -24,7 +24,7 @@ All feature and system specifications live in `specs/`. **Compliance is non-nego
 Path-specific instructions for GitHub Copilot live in `.github/instructions/*.instructions.md` with `applyTo` frontmatter.
 
 - Use `cargo nextest run` as the default test runner.
-- Keep Rust changes compatible with Edition 2024 and MSRV `1.97`.
+- Keep Rust changes compatible with Edition 2024 and MSRV `1.98`.
 - Prefer zero-warning `clippy`; avoid `unwrap`/`expect` in production code when proper error propagation is possible.
 - Any user-facing change must update relevant docs, config defaults, and `CHANGELOG.md` (`[Unreleased]` section).
 - For new functionality, provide all integration points: config section, CLI subcommand/argument, TUI command palette entry, `--init` wizard, `--migrate-config` migration step, live testing playbook in `.local/testing/playbooks/`, and coverage row in `.local/testing/coverage-status.md`.
@@ -69,7 +69,7 @@ All secrets and API keys are stored exclusively in the Zeph age vault. Never use
 - `cargo llvm-cov --all-features --workspace`: Generate coverage locally.
 
 ## Coding Style & Naming Conventions
-Use Rust 2024 edition and MSRV `1.97`. Follow `rustfmt` defaults (4-space indentation) and keep Clippy warnings at zero where practical.
+Use Rust 2024 edition and MSRV `1.98`. Follow `rustfmt` defaults (4-space indentation) and keep Clippy warnings at zero where practical.
 Use `snake_case` for functions/modules/files, `PascalCase` for types/traits, and `SCREAMING_SNAKE_CASE` for constants. Prefer small modules with explicit responsibilities; keep public APIs in `lib.rs` minimal and re-export intentionally.
 
 ## Testing Guidelines

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -22,6 +22,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ### Changed
 
+- Raised the workspace MSRV to Rust 1.98 and resolved the new `clippy::unused_async_trait_impl` /
+  `clippy::chunks_exact_to_as_chunks` lints introduced by it (#6746, #6748).
 - `release.yml`: removed `Swatinem/rust-cache` and `sccache` from the `build-binaries` job.
   Release builds only run on `v*` tag push, infrequently enough that any cache entry written
   by the previous release has almost certainly been evicted from the shared 10 GiB GHA cache

diff --git a/Cargo.toml b/Cargo.toml
@@ -5,7 +5,7 @@ resolver = "3"
 
 [workspace.package]
 edition = "2024"
-rust-version = "1.97"
+rust-version = "1.98"
 version = "0.22.4"
 authors = ["bug-ops"]
 license = "MIT OR Apache-2.0"

diff --git a/README.md b/README.md
@@ -9,7 +9,7 @@
   [![docs](https://img.shields.io/badge/docs-book-blue)](https://bug-ops.github.io/zeph/)
   [![CI](https://img.shields.io/github/actions/workflow/status/bug-ops/zeph/ci.yml?branch=main&label=CI)](https://github.com/bug-ops/zeph/actions)
   [![codecov](https://codecov.io/gh/bug-ops/zeph/graph/badge.svg?token=S5O0GR9U6G)](https://codecov.io/gh/bug-ops/zeph)
-  [![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+  [![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
   [![Tests](https://img.shields.io/badge/tests-15609-brightgreen)](https://github.com/bug-ops/zeph/actions)
   [![License: MIT OR Apache-2.0](https://img.shields.io/badge/License-MIT%20OR%20Apache--2.0-yellow.svg)](LICENSE)
 </div>
@@ -246,7 +246,7 @@ cd zeph && cargo build --release --features full
 Builds run only what you need via [feature bundles](https://bug-ops.github.io/zeph/reference/feature-flags.html): `desktop` (TUI), `ide` (ACP), `server` (gateway + A2A + telemetry), `chat` (Discord + Slack), `ml` (Candle + PDF), or `full`. Cross-platform: Linux, macOS, Windows on x86_64 and ARM64.
 
 > [!IMPORTANT]
-> Building from source requires Rust 1.97 or later. Pre-built binaries do not need a toolchain.
+> Building from source requires Rust 1.98 or later. Pre-built binaries do not need a toolchain.
 
 ## Common commands
 

diff --git a/crates/zeph-a2a/README.md b/crates/zeph-a2a/README.md
@@ -3,7 +3,7 @@
 [![Crates.io](https://img.shields.io/crates/v/zeph-a2a)](https://crates.io/crates/zeph-a2a)
 [![docs.rs](https://img.shields.io/docsrs/zeph-a2a)](https://docs.rs/zeph-a2a)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/License-MIT%20OR%20Apache--2.0-yellow.svg)](../../LICENSE)
-[![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+[![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
 
 A2A protocol client and server with agent discovery for Zeph.
 

diff --git a/crates/zeph-acp/README.md b/crates/zeph-acp/README.md
@@ -3,7 +3,7 @@
 [![Crates.io](https://img.shields.io/crates/v/zeph-acp)](https://crates.io/crates/zeph-acp)
 [![docs.rs](https://img.shields.io/docsrs/zeph-acp)](https://docs.rs/zeph-acp)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/License-MIT%20OR%20Apache--2.0-yellow.svg)](../../LICENSE)
-[![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+[![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
 
 ACP (Agent Client Protocol) server adapter for embedding Zeph in IDE environments.
 
@@ -22,7 +22,7 @@ zeph-acp = { version = "0.22", features = ["acp-http"] }
 ```
 
 **Important:**
-> Requires Rust 1.97 or later.
+> Requires Rust 1.98 or later.
 
 ## Features
 

diff --git a/crates/zeph-acp/src/fs.rs b/crates/zeph-acp/src/fs.rs
@@ -280,8 +280,11 @@ fn validate_path(raw: &str) -> Result<PathBuf, ToolError> {
 }
 
 impl zeph_tools::ToolExecutor for AcpFileExecutor {
-    async fn execute(&self, _response: &str) -> Result<Option<ToolOutput>, ToolError> {
-        Ok(None)
+    fn execute(
+        &self,
+        _response: &str,
+    ) -> impl std::future::Future<Output = Result<Option<ToolOutput>, ToolError>> + Send {
+        std::future::ready(Ok(None))
     }
 
     fn tool_definitions(&self) -> Vec<ToolDef> {

diff --git a/crates/zeph-acp/src/terminal.rs b/crates/zeph-acp/src/terminal.rs
@@ -389,8 +389,11 @@ struct BashStdinParams {
 }
 
 impl zeph_tools::ToolExecutor for AcpShellExecutor {
-    async fn execute(&self, _response: &str) -> Result<Option<ToolOutput>, ToolError> {
-        Ok(None)
+    fn execute(
+        &self,
+        _response: &str,
+    ) -> impl std::future::Future<Output = Result<Option<ToolOutput>, ToolError>> + Send {
+        std::future::ready(Ok(None))
     }
 
     fn tool_definitions(&self) -> Vec<ToolDef> {

diff --git a/crates/zeph-agent-context/README.md b/crates/zeph-agent-context/README.md
@@ -3,7 +3,7 @@
 [![Crates.io](https://img.shields.io/crates/v/zeph-agent-context)](https://crates.io/crates/zeph-agent-context)
 [![docs.rs](https://img.shields.io/docsrs/zeph-agent-context)](https://docs.rs/zeph-agent-context)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/license-MIT%20OR%20Apache--2.0-blue.svg)](../../LICENSE)
-[![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+[![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
 
 Agent context-assembly service for the [Zeph](https://github.com/bug-ops/zeph) AI agent.
 
@@ -20,7 +20,7 @@ zeph-agent-context = { version = "0.22", workspace = true }
 ```
 
 > [!IMPORTANT]
-> Requires Rust 1.97 or later (Edition 2024). This crate does **not** depend on `zeph-core` — only on lower-level crates (`zeph-memory`, `zeph-llm`, `zeph-skills`, `zeph-context`, `zeph-sanitizer`, `zeph-config`, `zeph-common`).
+> Requires Rust 1.98 or later (Edition 2024). This crate does **not** depend on `zeph-core` — only on lower-level crates (`zeph-memory`, `zeph-llm`, `zeph-skills`, `zeph-context`, `zeph-sanitizer`, `zeph-config`, `zeph-common`).
 
 ## Usage
 

diff --git a/crates/zeph-agent-context/src/compaction.rs b/crates/zeph-agent-context/src/compaction.rs
@@ -830,8 +830,11 @@ mod tests {
     }
 
     impl zeph_llm::provider::LlmProvider for StubProvider {
-        async fn chat(&self, _messages: &[Message]) -> Result<String, zeph_llm::LlmError> {
-            Ok(self.response.to_owned())
+        fn chat(
+            &self,
+            _messages: &[Message],
+        ) -> impl std::future::Future<Output = Result<String, zeph_llm::LlmError>> + Send {
+            std::future::ready(Ok(self.response.to_owned()))
         }
 
         async fn chat_stream(
@@ -848,8 +851,12 @@ mod tests {
             false
         }
 
-        async fn embed(&self, _text: &str) -> Result<Vec<f32>, zeph_llm::LlmError> {
-            Ok(vec![])
+        fn embed(
+            &self,
+            _text: &str,
+        ) -> impl std::future::Future<Output = Result<Vec<f32>, zeph_llm::LlmError>> + Send
+        {
+            std::future::ready(Ok(vec![]))
         }
 
         fn supports_embeddings(&self) -> bool {
@@ -881,8 +888,12 @@ mod tests {
             false
         }
 
-        async fn embed(&self, _text: &str) -> Result<Vec<f32>, zeph_llm::LlmError> {
-            Ok(vec![])
+        fn embed(
+            &self,
+            _text: &str,
+        ) -> impl std::future::Future<Output = Result<Vec<f32>, zeph_llm::LlmError>> + Send
+        {
+            std::future::ready(Ok(vec![]))
         }
 
         fn supports_embeddings(&self) -> bool {

diff --git a/crates/zeph-agent-feedback/README.md b/crates/zeph-agent-feedback/README.md
@@ -3,7 +3,7 @@
 [![Crates.io](https://img.shields.io/crates/v/zeph-agent-feedback)](https://crates.io/crates/zeph-agent-feedback)
 [![docs.rs](https://img.shields.io/docsrs/zeph-agent-feedback)](https://docs.rs/zeph-agent-feedback)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/license-MIT%20OR%20Apache--2.0-blue.svg)](../../LICENSE)
-[![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+[![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
 
 Implicit correction detection for the [Zeph](https://github.com/bug-ops/zeph) AI agent.
 
@@ -27,7 +27,7 @@ Or with cargo-add:
 cargo add zeph-agent-feedback
 ```
 
-**Note:** Requires Rust 1.97 or later (Edition 2024).
+**Note:** Requires Rust 1.98 or later (Edition 2024).
 
 ## Usage
 

diff --git a/crates/zeph-agent-persistence/README.md b/crates/zeph-agent-persistence/README.md
@@ -3,7 +3,7 @@
 [![Crates.io](https://img.shields.io/crates/v/zeph-agent-persistence)](https://crates.io/crates/zeph-agent-persistence)
 [![docs.rs](https://img.shields.io/docsrs/zeph-agent-persistence)](https://docs.rs/zeph-agent-persistence)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/license-MIT%20OR%20Apache--2.0-blue.svg)](../../LICENSE)
-[![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+[![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
 
 Agent persistence service for Zeph: loads conversation history from and writes messages to the
 `SemanticMemory` backend (SQLite + Qdrant), with tool-pair sanitization and embedding decisions.

diff --git a/crates/zeph-agent-tools/README.md b/crates/zeph-agent-tools/README.md
@@ -3,7 +3,7 @@
 [![Crates.io](https://img.shields.io/crates/v/zeph-agent-tools)](https://crates.io/crates/zeph-agent-tools)
 [![docs.rs](https://img.shields.io/docsrs/zeph-agent-tools)](https://docs.rs/zeph-agent-tools)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/license-MIT%20OR%20Apache--2.0-blue.svg)](../../LICENSE)
-[![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+[![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
 
 Doom-loop detection utilities for the Zeph tool dispatch loop.
 

diff --git a/crates/zeph-bench/README.md b/crates/zeph-bench/README.md
@@ -3,7 +3,7 @@
 [![Crates.io](https://img.shields.io/crates/v/zeph-bench)](https://crates.io/crates/zeph-bench)
 [![docs.rs](https://img.shields.io/docsrs/zeph-bench)](https://docs.rs/zeph-bench)
 [![CI](https://img.shields.io/github/actions/workflow/status/bug-ops/zeph/ci.yml?branch=main)](https://github.com/bug-ops/zeph/actions)
-[![MSRV](https://img.shields.io/badge/MSRV-1.97-blue)](https://www.rust-lang.org)
+[![MSRV](https://img.shields.io/badge/MSRV-1.98-blue)](https://www.rust-lang.org)
 [![License](https://img.shields.io/crates/l/zeph-bench)](../../LICENSE)
 
 Benchmark harness for evaluating Zeph agent performance on standardized datasets.
@@ -167,7 +167,7 @@ impl Evaluator for MyEvaluator {
 > the response text. Every other dataset runs under `ResponseMode::TerseAnswer`.
 
 > [!IMPORTANT]
-> Requires Rust 1.97 or later.
+> Requires Rust 1.98 or later.
 
 ## Architecture