Make coding-agent work reviewable: plan, diffs, sign-off, audit trail
A small team can keep agent output accountable by giving every task a shared channel, a named approver, and an archived record.
When a coding agent can move from idea to pull request quickly, the review ritual has to be visible. More than 70% of code channels open and close in under a day, from idea to merged pull request. The ritual is five steps: open a task channel, post the plan, review the diff and preview, require named sign-off for high-stakes moves, and archive the channel.
Open a channel per task
Salesforce released Slack Code on August 20, 2026. At launch, Slack Code's founding agent partners were Claude Code, Devin, GitHub Copilot, plus Vercel's v0; ChatGPT was still to come. In Slack, tagging a coding agent starts a code channel scoped to that task, showing the agent's plan, the code diffs, and a live HTML preview.
Keep the channel narrow. A task channel should hold the plan, the discussion, and the artifacts for that task, not the whole team's daily chatter. Branching work gets a new channel, linked to the original. Name the channel for the task, post the plan before any diff appears, and keep the work findable without asking who started it.
Review the plan, diff, and preview
In a Slack code channel, anyone can watch the agent work, add feedback, pause or steer it, or stop it. The usual failure is treating the agent's summary as the review, because the summary can be confident while the diff is still wrong. Read the plan, then the diff, then the preview.
Make the review concrete. Ask what the plan changes, which files it touches, and what the preview should show. For a broad change, ask for the smallest version that proves the idea. Preview breakage gets called out in the channel before the diff is accepted. A working preview is a quick check that the change behaves the way the plan says, and the team can see it.
Across 157 open-source projects, a study of 567 Claude Code pull requests found 83.8% were eventually merged, but only 54.9% were merged unchanged. Review is complete after one person comments on the approach and another checks the changed files before the work is called ready.
Require a named human sign-off
Slack Code requires a human sign-off on high-stakes moves, such as pushing to production. A Microsoft enterprise study found that as AI-authored pull requests rose, the share of pull requests with at least one human review fell from 89% to 68%. Pick the approver before the agent starts. The owner of the affected system should be the default signer; for high-stakes moves, require a named human sign-off. The task waits while the approver is unavailable.
GitHub's Copilot coding agent can use Microsoft Teams conversations as context while it investigates a task, edits code, and creates a pull request. A developer can @mention the agent in Teams, and it can combine that thread with the connected repository to check the issue, make edits, and open a pull request for review. The Teams workflow still runs under repository permissions and pull-request controls, so changes can be reviewed before merging.
GitHub Copilot Enterprise's Autonomous Agent Mode, starting in July 2026, can build whole feature branches, including writing, testing, and commits, but Microsoft requires human approval before merging any autonomous change. Approval is real only if the sign-off names the person, the action, and the time.
Archive the channel as the audit log
When a Slack Code task ends, the channel archives automatically and stays searchable as an audit log. Archive the channel with the same care you would give a meeting note. Keep the task title, the plan, the diff, the preview link, and the sign-off message visible in the search results. Later, the answer to why a change went out should be a channel, not a guess. A new hire should be able to find the decision without asking the original owner.