Implement Slash Commands to Reduce Message Content Intent Reliance

[lorenzo132]

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[Copilot]

Pull request overview

This PR updates Modmail to v4.3.0 and introduces a slash-command compatibility layer (guild-scoped) to reduce reliance on the privileged message-content intent, alongside new support for snippet attachments stored in MongoDB GridFS.

Changes:

• Add guild-scoped slash command registration/refresh and disable legacy prefix commands by default (with intent gating).
• Add snippet attachment upload/download/delete via GridFS and wire snippet attachments into thread sending/logging.
• Update documentation/config examples and bump version references to v4.3.0.

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
README.md	Updates feature/command docs to slash-command + mention invocation model and adds command-interface guidance.
pyproject.toml	Bumps Poetry package version to 4.3.0.
core/thread.py	Adds snippet-attachment handling during send and logging.
core/slash_commands.py	Introduces a manager to expose legacy commands as guild-scoped application commands.
core/config.py	Adds config keys for command interfaces and snippet attachment size (MB) handling.
core/config_help.json	Documents snippet_attachment_max_size.
core/clients.py	Adds GridFS bucket support and snippet-attachment CRUD methods; extends logging API to accept attachment overrides.
cogs/utility.py	Switches user-facing examples/help formatting to support “/” display prefix and safer {prefix} substitution.
cogs/plugins.py	Refreshes slash command registry on plugin load/unload; updates installation examples.
cogs/modmail.py	Adds snippet attachment support (create/edit/remove) and adapts snippet display for new storage format.
CHANGELOG.md	Bumps changelog header to v4.3.0.
bot.py	Gates message-content intent behind prefix-enable flag; adds slash command sync/disable on connect; adds snippet attachment download wrapper.
app.json	Adds env var metadata for MODMAIL_GUILD_ID / USE_SLASH_COMMANDS / ENABLE_PREFIX_COMMANDS.
.env.example	Adds new env vars for slash/prefix command controls and optional MODMAIL_GUILD_ID.

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[Copilot]

Pull request overview

Copilot reviewed 14 out of 14 changed files in this pull request and generated no new comments.

Suppressed comments (4)

cogs/modmail.py:667

• Same as in snippet_add: a negative snippet_attachment_max_size results in a negative byte limit and rejects all uploads. Clamp/validate before computing max_size_bytes.

                max_size_mb = self.bot.config.get("snippet_attachment_max_size")
                max_size_bytes = max_size_mb * 1024 * 1024

core/slash_commands.py:103

• REQUIRED_SLASH_PARAMETERS forces the message option to be required for /reply variants even though the legacy commands accept an empty msg (e.g. reply(..., msg: str = "")). This blocks valid slash use-cases like attachment-only replies/snippets.

    REQUIRED_SLASH_PARAMETERS = {
        "areply": {"msg"},
        "fareply": {"msg"},
        "fpareply": {"msg"},
        "fpreply": {"msg"},
        "freply": {"msg"},
        "pareply": {"msg"},
        "preply": {"msg"},
        "reply": {"msg"},
    }

cogs/modmail.py:410

• snippet_attachment_max_size can be configured to a negative value, which makes max_size_bytes negative and causes every attachment to be rejected. Clamp to a non-negative size (or explicitly validate and error) before computing bytes.

This issue also appears on line 666 of the same file.

            max_size_mb = self.bot.config.get("snippet_attachment_max_size")
            max_size_bytes = max_size_mb * 1024 * 1024

cogs/utility.py:384

• "Checkout" is the noun/verb for completing a purchase; here the intended phrase is "Check out" (verb) meaning “take a look at”.

                "Checkout the people who supported Modmail with command "
                f"`{self.bot.command_display_prefix}sponsors`!"

[Copilot]

Pull request overview

Copilot reviewed 14 out of 14 changed files in this pull request and generated 1 comment.

Suppressed comments (1)

cogs/utility.py:385

• Grammar: "Checkout" should be "Check out" in this user-facing help text.

            value=(
                "Checkout the people who supported Modmail with command "
                f"`{self.bot.command_display_prefix}sponsors`!"
            ),